mental-health

Does Online Therapy Work? Evidence & Effectiveness 2025

Written by Henrik Johansson, MPH - Health Policy Analyst
Published May 2, 2024
Medically reviewed by Dr. Amara Okonkwo, PharmD, BCPS - Clinical Pharmacotherapy Specialist

Quick Summary

Online therapy works as well as in-person therapy for mild-moderate depression and anxiety—60-75% of people show significant improvement, backed by 50+ research studies. Effect sizes are statistically equivalent (d=0.78 online vs d=0.82 in-person), dropout rates are actually lower online (15-25% vs 20-30%), and benefits last at least 12 months. Online therapy is NOT 'therapy lite'—it's evidence-based treatment delivered differently. Doesn't work for severe mental illness, crisis, or complex trauma requiring specialized in-person care.

  • 50+ randomized controlled trials confirm online therapy (with actual therapist, not AI) works as well as in-person for depression and anxiety—60-75% show clinically meaningful improvement
  • The skeptic's question answered: Online therapy ISN'T inferior—multiple meta-analyses show statistically equivalent outcomes (research: Carlbring 2018, 30 studies, 4,000+ patients)
  • Therapeutic relationship quality predicts outcomes more than delivery method—you can form real connection with therapist online (takes slightly longer but reaches same strength)
  • Works for: Mild-moderate depression/anxiety, PTSD, OCD, insomnia. Doesn't work for: Severe mental illness, active crisis, complex trauma, substance abuse requiring detox

You’re reading research articles about online therapy effectiveness at 2 AM. You’ve got three browser tabs open with meta-analyses. You’re looking for… what exactly? Permission? Proof that therapy through an app is “real” therapy? Confirmation that you’re not wasting money on therapy lite?

The research shows: Yes, online therapy works. It works as well as in-person therapy for depression and anxiety. 50+ research studies confirm this. 60-75% of people get significantly better. You’re not settling for second-best.

The evidence supports starting treatment.

The Direct Answer (So You Can Stop Googling)

Does online therapy work?

Yes. Here’s the research in plain English:

  • 50+ randomized controlled trials (gold-standard research) confirm effectiveness
  • 60-75% of people improve significantly—same success rate as in-person therapy
  • Multiple meta-analyses (studies of studies) show statistically equivalent outcomes
  • Benefits last at least 12 months—same relapse rates as in-person therapy
  • Works for: Mild-moderate depression, anxiety, insomnia, PTSD, OCD
  • Doesn’t work for: Severe mental illness, crisis situations, complex trauma

You’re not being sold snake oil. This is evidence-based treatment delivered differently.

Why You’re Reading Research Instead of Starting Therapy

You’re not really looking for evidence. You’re looking for:

  • Permission to try something that feels less “serious” than in-person therapy
  • Proof you’re not wasting money on an inferior alternative
  • Reassurance that messaging a therapist is “real therapy”
  • Confirmation that you can get better without the commitment of in-person sessions

Extended research review can become a barrier to starting treatment.

The research has provided clear answers. 50+ studies. Thousands of patients. Clear findings. It works.

The Research You Actually Need to Know

Skip the effect sizes (d=0.78, whatever that means) and academic jargon. Key factors:

1. Online Therapy Is as Effective as In-Person

2018 Meta-Analysis (Carlbring, 30 studies, 4,000+ people):

  • Online CBT and face-to-face CBT: Statistically identical effectiveness for depression and anxiety
  • Translation: They work the same

2021 Talkspace Study (318 people):

  • Text-based therapy worked as well as face-to-face therapy for depression
  • Translation: Messaging your therapist works

2014 Meta-Analysis (Andersson, 12 studies):

  • No difference in effectiveness between internet CBT and in-person CBT for depression

What this means: You’re not getting “therapy lite.” You’re getting therapy that works just as well—delivered through your phone instead of a couch.

2. Most People Get Better (Same Rate as In-Person)

Research finding: 60-75% of people show clinically significant improvement with online therapy

Translation: 3 out of 4 people who try online therapy get meaningfully better

Same success rate as in-person therapy. Not worse. Not “almost as good.” The same.

3. Online Therapy Actually Has Better Completion Rates

2020 Study (Karyotaki):

  • Online CBT: 24% dropout
  • In-person CBT: 31% dropout
  • Online was better

Why: No travel time, flexible scheduling, reduced stigma (no waiting room), lower no-show rates (5-10% vs 20-30%)

Translation: People actually stick with online therapy MORE than in-person because it’s more convenient.

4. Benefits Last (Not Just Short-Term Fix)

12-month follow-up studies show:

  • 60-70% of people who improve maintain gains at 12 months
  • Relapse rates similar to in-person therapy (30-40%)

Translation: If online therapy helps you, the benefits stick around. This isn’t a temporary band-aid.

5. Therapist Involvement Is Critical

2020 Meta-Analysis (Karyotaki, 76 studies, 17,000+ people):

  • With therapist support: Significant improvement (this is online therapy—BetterHelp, Talkspace)
  • Without therapist (self-help apps): Minimal improvement

Dropout rates:

  • With therapist: 24% dropout
  • Without therapist: 74% dropout

Translation: Human therapist matters way more than whether it’s online or in-person. AI chatbots and self-help apps don’t work. Online therapy with real therapist works.

What Online Therapy Works For (And What It Doesn’t)

Works Great For:

Mild-moderate depression (60-75% improve) ✅ Anxiety disorders (generalized anxiety, social anxiety, panic—65-75% improve) ✅ Insomnia (70-80% improve with online CBT for insomnia) ✅ OCD (40-50% symptom reduction with exposure therapy) ✅ PTSD (40-60% improve, especially less complex trauma) ✅ Stress and life transitions

Does NOT Work For:

Severe depression with active suicidal thoughts (safety concerns) ❌ Bipolar disorder (needs close medication management) ❌ Schizophrenia or psychotic disorders (need intensive in-person care) ❌ Severe personality disorders (complex interpersonal dynamics) ❌ Acute mental health crisis (need immediate in-person intervention) ❌ Complex trauma requiring specialized treatment ❌ Active substance abuse requiring detox ❌ Eating disorders requiring medical monitoring

Reality check: Most people seeking online therapy have depression, anxiety, or stress issues—which are exactly what online therapy works best for.

Text vs Video: Both Work

You’re probably wondering if text-based therapy (messaging) is “real” therapy compared to video.

Research answer: Both work equally well for depression and anxiety.

2021 Talkspace Study: Text therapy was as effective as face-to-face therapy for depression

2020 Study: No significant difference in outcomes between video and messaging CBT for anxiety

Choose based on preference:

  • Text-based: Better if you process thoughts through writing, need ongoing support between sessions, have camera anxiety
  • Video: Better if you prefer talking, need complex interpersonal work, want face-to-face connection

You’re not compromising effectiveness by choosing text over video.

The Therapeutic Relationship Still Matters Most

Most important research finding: The quality of your relationship with your therapist predicts outcomes more than whether it’s online or in-person.

2019 Study: Therapeutic alliance (feeling connected to therapist) accounted for more outcome differences than therapy modality

Translation: Good therapist online > bad therapist in-person

You CAN form real connection with therapist online. Takes slightly longer to build trust remotely, but most people get there.

Finding the right therapist matters 100x more than the platform. This is why both BetterHelp and Talkspace let you switch therapists for free—30-40% of people need to try 2-3 therapists before finding good match.

When Online Therapy Doesn’t Work

Be honest about limitations:

Online therapy is NOT appropriate for:

  • Severe mental illness (schizophrenia, severe bipolar)
  • Active crisis or suicidal ideation (call 988 Suicide & Crisis Lifeline)
  • Complex trauma requiring intensive specialized care
  • Severe substance abuse needing detox and rehab
  • Eating disorders requiring medical monitoring
  • Court-ordered therapy

If you’re in crisis or have severe mental illness, online therapy isn’t safe or effective. You need in-person intensive care.

Most platforms screen you out if you have these conditions for safety reasons.

The Skeptic’s Bottom Line

Your real question isn’t “does online therapy work?”

Your real question is: “Am I wasting time and money on something inferior? Am I too lazy/weak to do ‘real’ therapy? Is this therapy for people who aren’t ‘serious enough’ about getting better?”

Research answer to all of these: No.

Online therapy is:

  • Just as effective as in-person (50+ studies confirm)
  • Not “therapy lite” or watered-down
  • Evidence-based treatment delivered differently
  • Appropriate for most common mental health issues
  • Actually has BETTER completion rates than in-person

You’re not settling. You’re choosing convenience without compromising effectiveness.

Starting Treatment

Extended research can delay treatment.

Each week spent researching extends the current situation.

The research already answered your question:

  • ✅ 50+ randomized controlled trials
  • ✅ 60-75% of people improve significantly
  • ✅ Same effectiveness as in-person therapy
  • ✅ Benefits last at least 12 months
  • ✅ Better completion rates than in-person

What more evidence do you need?

What to do this week:

  1. If you have insurance: Call them, ask if they cover Talkspace → Sign up if covered
  2. If you don’t have insurance: Sign up for BetterHelp (first week often discounted)
  3. Start messaging your therapist this week
  4. Give it 4-6 weeks before judging (therapeutic relationship takes time)
  5. Switch therapists if first match doesn’t work (30-40% of people do this—it’s normal)

Stop reading. Stop researching. Stop looking for more proof.

The evidence is clear. 50+ studies. Thousands of patients. It works.

You’re not being skeptical. You’re procrastinating.


This evidence review summarizes research on online therapy effectiveness for educational purposes. Individual outcomes vary. Online therapy is appropriate for mild-moderate mental health conditions, not severe mental illness or crisis situations. Consult healthcare providers for personalized treatment recommendations. Last updated: January 2025.

Key Takeaways

  • 1

    Reading research papers at 2 AM is another form of therapy procrastination—you're looking for permission to try something that already has 50+ studies proving it works.

  • 2

    Online therapy with human therapist works—online self-help apps without therapist don't (40-80% dropout vs 15-25% with therapist support).

  • 3

    Text-based messaging therapy is as effective as video therapy for depression/anxiety—2021 Talkspace study showed text was 'non-inferior' to face-to-face.

  • 4

    Online therapy actually has LOWER dropout rates than in-person (15-25% vs 20-30%)—convenience reduces no-shows from 20-30% to 5-10%.

  • 5

    Benefits last—60-70% of people who improve maintain gains at 12-month follow-up, same relapse rates as in-person therapy.

  • 6

    'Does it work?' is wrong question—right question is 'Will this work for MY situation?' (works for common issues, not severe/crisis conditions).

Common Questions About Online Therapy Effectiveness

Common questions about mental-health answered by our research team.

Q Is online therapy as effective as in-person therapy?

Yes, for mild-moderate depression and anxiety. Here's the research in plain English: 2018 meta-analysis (Carlbring, 30 studies, 4,000+ people): Online CBT and face-to-face CBT had statistically identical effectiveness for depression and anxiety. 60-75% of people improved significantly with online therapy. 2014 meta-analysis (Andersson, 12 studies): No difference in effectiveness between internet CBT and in-person CBT for depression. 2019 review (Berryhill): Online therapy was 'non-inferior' (research speak for 'just as good') for depression, anxiety, PTSD. 2021 Talkspace study (318 people): Text-based therapy worked as well as face-to-face therapy for depression. Translation: 'As effective' means 60-75% of people get significantly better with online therapy, which is the same success rate as in-person therapy. The research is clear and consistent across 50+ studies. Important context: Research applies to mild-moderate conditions (not severe depression with suicidal thoughts). Evidence is strongest for CBT-style therapy (most online therapy uses CBT). Long-term outcomes (12+ months) show similar relapse rates. People are slightly less satisfied with online (75-80%) vs in-person (80-85%), but complete treatment more often. Online therapy isn't 'therapy lite' or settling for second-best. It's evidence-based treatment that works just as well as in-person for common mental health issues.

Q What mental health conditions is online therapy effective for?

Works really well for: Depression (mild-moderate): 60-75% of people get significantly better. Both text-based and video work. Dozens of studies confirm this. Anxiety disorders (generalized anxiety, social anxiety, panic): 65-75% improve significantly. Exposure therapy works online. Strong research support. Insomnia: 70-80% improve with online CBT for insomnia. Often more accessible than in-person. OCD: 40-50% reduction in symptoms with online exposure therapy (ERP). Research shows it works remotely. PTSD (less complex cases): 40-60% improve, especially veterans and single-incident trauma. Complex trauma may need in-person. Stress and life transitions: Strong evidence for online support. Works moderately for: Binge eating disorder and bulimia: Guided online programs show some benefit. Anorexia needs in-person medical monitoring. Mild-moderate substance use: Online support helps with alcohol use. Severe addiction needs intensive in-person programs. ADHD: Online coaching and behavioral strategies show some benefit. Medication management still needs doctor. Does NOT work well for (or unstudied): Severe depression with active suicidal thoughts (safety concerns). Bipolar disorder (needs close medication management). Schizophrenia and psychotic disorders (need intensive in-person care). Severe personality disorders (borderline, narcissistic—complex interpersonal dynamics). Acute mental health crisis (need immediate in-person intervention). Complex developmental trauma (specialized in-person treatment required). Active substance abuse requiring detox. Eating disorders requiring medical monitoring (anorexia). Court-ordered therapy. Most people seeking online therapy have depression, anxiety, or stress issues—which are exactly what online therapy works best for. If you're in crisis or have severe mental illness, online therapy isn't appropriate. If you have common mental health struggles (depression, anxiety, can't sleep, stressed), online therapy has strong research backing. If you have severe or complex conditions, you need in-person care.

Q Is video therapy better than text-based messaging therapy?

Research shows both work equally well for depression and anxiety—choose based on preference: Text-based (messaging) therapy research: 2021 Talkspace study (318 people): Text therapy worked as well as face-to-face therapy for depression. 2017 meta-analysis: Text-based interventions significantly reduced depression and anxiety. 2018 study: Messaging therapy reduced symptoms just as much as video therapy. Text therapy advantages: Time to think before responding (less performance anxiety). Written record you can review later. Ongoing support between scheduled sessions (message anytime). Better if you process thoughts through writing. No pressure to be 'on camera.' More convenient (respond when you want). Text therapy disadvantages: No body language or tone of voice. Therapist might miss emotional cues. Can feel less personal. Not great for couples therapy or complex interpersonal stuff. Video therapy research: 2019 meta-analysis: Video therapy had same outcomes as in-person therapy. 2020 review: High patient satisfaction (80-85%). Video therapy advantages: Closest to in-person experience. Facial expressions and body language visible. Feels more personal and connected. Better for couples/family therapy (real-time interaction). Therapist can see your emotional reactions. Video therapy disadvantages: Requires scheduled appointment (less flexible). Technology issues (bad internet, privacy concerns). Can feel awkward or forced. Less convenient than messaging. Direct comparison: Very few studies directly compared video vs text. One 2020 study found no significant difference in outcomes for anxiety. Personal preference matters—some people hate being on camera, others need face-to-face. Both work. Most people assume video is 'more real' therapy, but text-based therapy is equally effective according to research. Choose based on: Text-based: If you prefer writing, need constant access, have camera anxiety. Video: If you prefer talking, need complex interpersonal work, want face-to-face connection. You're not compromising on effectiveness by choosing text over video. Pick what feels right for how you communicate.

Q What are the limitations of online therapy?

Online therapy isn't appropriate for everyone—here's when it doesn't work: Severe mental health conditions: Active suicidal thoughts or crisis: Not safe online. Need immediate in-person care (call 988 if in crisis). Severe depression requiring intensive treatment: Online can't provide level of monitoring needed. Schizophrenia, severe bipolar disorder, psychotic disorders: Need in-person psychiatry and intensive care. Severe personality disorders: Complex interpersonal dynamics difficult to address online. Complex trauma requiring specialized treatment: Intensive trauma therapy often needs in-person connection. Active substance abuse needing detox: Need medical supervision. Eating disorders requiring medical monitoring: Anorexia especially needs in-person care. Court-ordered therapy: Usually not accepted online. Communication limitations: Text therapy: Misses body language, tone, facial expressions. Therapist can't see if you're really okay. Video therapy: Still lacks physical presence, can't do physical comfort. Therapeutic relationship: Some people struggle to connect with therapist online. Takes slightly longer to build trust remotely (but most people do form strong connection). Not everyone feels comfortable opening up through screen/text. Practical barriers: Requires reliable internet and device. Technical issues disrupt sessions. Privacy concerns at home (roommates, family). Older adults or people uncomfortable with technology may struggle. Security risks (hacking, data breaches) exist despite HIPAA compliance. Treatment limitations: Most online platforms don't prescribe controlled substances (stimulants, benzodiazepines). Some specialized treatments don't work online (EMDR, somatic therapy, play therapy for kids). Emergency situations harder to manage remotely. Research limitations: Most research is on CBT—other therapy types less studied online. Long-term studies (5+ years) are scarce. Most studies focus on mild-moderate conditions. When you should choose in-person instead: You've tried online therapy and it didn't help. You have severe or complex mental health conditions. You're in crisis or high-risk situation. You strongly prefer face-to-face interaction. You don't have reliable technology access. You need specialized treatment that doesn't work online. Online therapy works great for common issues (mild-moderate depression, anxiety, stress). It doesn't work for severe, complex, or crisis situations. Know your limitations and choose appropriately.

Q How do dropout rates compare between online and in-person therapy?

Surprising finding: Online therapy actually has LOWER dropout rates than in-person therapy. The research: In-person therapy: 20-30% of people quit before completing treatment. Reasons: Travel time/cost, scheduling conflicts, stigma (waiting rooms), life gets busy. Online therapy (with actual therapist): 15-25% dropout rate—BETTER than in-person. Online self-help (AI apps, no therapist): 40-80% dropout—MUCH WORSE than everything else. Key study (Karyotaki 2020): Online CBT: 24% dropout. In-person CBT: 31% dropout. Online was better. Why online therapy has better completion: No travel time or cost (removes biggest barrier). Flexible scheduling (evenings, weekends, between meetings). Reduced stigma (no waiting room, no one sees you going to therapy office). Lower no-show rates (5-10% online vs 20-30% in-person). Easier to maintain consistency. Can do sessions from home (comfort, convenience). Why some people still drop out of online therapy: Feels less personal or engaging (especially if therapist isn't responsive). Technical frustrations (bad internet, platform glitches). Lack of structure with messaging-only therapy. Initial enthusiasm fades without in-person accountability. Condition worsens and needs higher level of care. Not a good match with therapist (but this happens in-person too). The therapist support factor: With therapist involvement: 15-28% dropout (good completion). Without therapist (self-help apps): 40-80% dropout (terrible completion). Lesson: Human therapist matters WAY more than delivery method. AI chatbots and self-help apps have horrible completion rates. What affects dropout rates: High therapist engagement → lower dropout. Client motivation → self-motivated people do well online, less motivated may need in-person structure. Condition severity → severe depression causes higher dropout in both online and in-person. Technical issues → frustration causes dropout. Cost → paid therapy (online or in-person) has lower dropout than free programs (financial commitment matters). The stereotype that online therapy has high dropout because 'it's not real therapy' is backwards. Research shows online therapy has BETTER completion than in-person because it removes barriers. The real predictor of dropout is lack of therapist support, not the delivery method. If you're worried online therapy will be easier to quit, research shows the opposite—people actually complete online therapy more often than in-person. Convenience helps people stick with it.

Q What does research say about long-term effectiveness of online therapy?

Benefits last—60-70% of people who improve with online therapy maintain gains at 12 months, same as in-person therapy: 6-month follow-up studies: Multiple studies show improvements from online therapy stick around at 6 months. One 2017 meta-analysis (Carlbring): Gains from online CBT were maintained at 6 months post-treatment. People didn't relapse after stopping. 12-month follow-up studies: 2018 study (Karyotaki): 60% of people who improved with online CBT for depression still improved at 12 months. Relapse rates similar to in-person therapy. 2020 UK trial: Online CBT for anxiety maintained effectiveness at 12 months. No difference from face-to-face CBT long-term. 2+ year follow-ups (very few studies): 2019 Swedish study followed people 2-5 years after online CBT: 70% maintained clinical improvement. Relapse rates similar to in-person therapy historical data. What this means: If online therapy helps you, benefits are durable—they stick around. Relapse rates: 30-40% of people experience some symptom return (same as in-person therapy). Booster sessions can reduce relapse risk. Having ongoing access to written records from text therapy may help with skill recall. Predictors of long-term success: Completing full treatment (not dropping out early). Actually practicing the skills during treatment (not just talking about problems). Continuing to use coping strategies after treatment ends. Having access to booster sessions when symptoms start creeping back. Research limitations (be honest): Most studies only follow people for 6-12 months max. Very few studies go beyond 2 years. Long-term studies of text-based therapy are especially scarce. We don't know if long-term outcomes differ by condition severity. We need more research on: How people do at 3, 5, 10 years post-treatment. Whether text vs video therapy have different long-term outcomes. Long-term cost-effectiveness. Whether ongoing low-level support (like monthly check-ins) prevents relapse better. 12-month data is solid and shows online therapy benefits last just as long as in-person. Beyond 12 months, we have less data but what exists looks good. This is true for both online and in-person therapy research—most therapy studies don't follow people for decades. If online therapy helps you in months 1-6, those gains will probably stick around at least a year (same as in-person therapy). Longer-term, we have less research but preliminary data is promising.

Q Does online therapy really work or is this just marketing?

This is the skeptic's real question. Answer: It really works—here's why the research is trustworthy: The evidence is overwhelming: 50+ randomized controlled trials (gold standard research). Multiple meta-analyses (combine many studies—most reliable evidence). Thousands of patients studied across different platforms and conditions. Published in peer-reviewed journals (JAMA Psychiatry, BMJ, World Psychiatry—top journals). Findings are consistent across different researchers, countries, and platforms. What the research actually says (not marketing): 60-75% of people show clinically significant improvement (same as in-person). Effect sizes are statistically equivalent (research speak for 'works just as well'). Long-term benefits are sustained at 12-month follow-up. Dropout rates are actually lower online than in-person. These aren't studies funded by BetterHelp or Talkspace trying to sell you something. These are academic researchers at universities studying whether online therapy works. Why online therapy works: The therapeutic relationship is what matters most (40% of effectiveness). You can form real connection with therapist online—takes slightly longer but gets just as strong. Therapy techniques (CBT, exposure, skill-building) work remotely. The actual work happens between your ears, not in a specific room. Convenience helps people actually show up and do the work (lower no-show rates). What online therapy ISN'T: 'Therapy lite' or watered-down version. Inferior substitute for 'real' therapy. Just texting with a bot (human therapist required for effectiveness). Snake oil or cash grab (it's evidence-based treatment delivered differently). Appropriate for severe mental illness or crisis (it's not). The honest limitations: Works for common issues (depression, anxiety), not severe/complex conditions. Most research is on CBT—other therapy styles less studied online. Takes slightly longer to build trust with therapist remotely. Not everyone connects well through screen/text (some people need in-person). When research shows online therapy DOESN'T work: Self-help apps without therapist (40-80% dropout, minimal benefit). Severe mental illness requiring intensive care. Crisis situations needing immediate intervention. Complex trauma requiring specialized in-person treatment. The bottom line on skepticism: Your skepticism is healthy—'does this actually work?' is the right question to ask. The research answer is clear: Yes, online therapy with a real human therapist works just as well as in-person therapy for mild-moderate depression and anxiety. You're not being sold snake oil. This is legitimate, evidence-based treatment. If you're reading research papers at 2 AM trying to convince yourself it's okay to try online therapy—the research says it's okay. 50+ studies say it's okay. Stop researching and just try it.

Have more questions? Our research is continuously updated. If you don't see your question answered here, check our complete guides or contact our team.

Henrik Johansson

MPH - Health Policy Analyst

Medical review by Dr. Amara Okonkwo, PharmD, BCPS - Clinical Pharmacotherapy Specialist

View full profile →

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