Best Free Podcast Transcription Tool in 2026: MP3toTXT vs Rev vs Otter.ai

Every podcaster needs transcriptions, but not every podcaster wants to pay $1-$2 per minute for them. In this comparison, we look at the three most popular podcast transcription tools and break down which ones are actually free — and which ones just say they are.

Why Podcast Transcription Tools Matter

A good transcription tool should:

• Deliver 90%+ accuracy on conversational speech
• Handle multiple speakers clearly
• Export in a usable format (TXT, DOCX, SRT)
• Not require a credit card to try

Let's see how the main players stack up.

MP3toTXT — Best for Free-First Podcasters

Price: Free tier available, no credit card required

MP3toTXT is built around a simple promise: upload your audio, get your transcript. The free tier gives you enough minutes to transcribe a full episode before you decide whether to pay.

What it does well:

• Drag-and-drop interface — no technical setup
• Speaker labels (diarization) built into the free tier
• Supports MP3, WAV, M4A, MP4, and more
• 30+ languages including Spanish, French, German, Portuguese
• Word-level timestamps included

Limitations:

• Free tier has a monthly minute cap
• No real-time transcription (upload-only)

Verdict: The best starting point for podcasters who want to test transcription without committing. Free tier is genuinely useful, not a bait-and-switch.

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Rev — Best for Professional Accuracy (But Not Free)

Price: $0.25/minute (AI), $1.50/minute (human)

Rev is the go-to for broadcast professionals and journalists who need near-perfect accuracy and are willing to pay. Their AI transcription is fast and accurate; their human transcription service is the gold standard for verbatim legal or medical transcripts.

What it does well:

• Human transcription option (99%+ accuracy)
• Caption files (SRT, VTT) for YouTube and video podcasts
• Clean, professional formatting

Limitations:

• No genuinely free tier — "free trial" requires a credit card
• AI pricing adds up quickly for high-volume podcasters
• Best value is at the human tier, which is expensive

Verdict: Worth it for broadcasters with a budget. Overkill for indie podcasters.

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Otter.ai — Best for Live Meetings, Not Podcast Files

Price: Free (300 min/month), Pro at $16.99/month

Otter.ai is primarily designed for real-time meeting transcription (Zoom, Teams, Google Meet). Its upload feature works for podcast files but it's clearly not the primary use case.

What it does well:

• Real-time transcription during live calls
• Calendar and Zoom integration
• Decent free tier at 300 minutes/month

Limitations:

• Free tier limits you to 30 minutes per conversation
• Speaker identification is less accurate on pre-recorded audio vs. live calls
• UI is optimized for meeting notes, not podcast show notes
• English-only on free tier

Verdict: Excellent for meeting notes. Mediocre for podcast transcription workflows.

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Side-by-Side Comparison

Feature	MP3toTXT	Rev AI	Otter.ai Free
Free tier	✅ Yes	❌ No (trial only)	✅ 300 min/month
Credit card required	❌ No	✅ Yes	❌ No
Speaker labels	✅ Yes	✅ Yes	✅ Yes
Languages supported	30+	36	English only (free)
Upload podcast files	✅ Yes	✅ Yes	✅ Yes
Export formats	TXT, copy	TXT, DOCX, SRT	TXT, DOCX, PDF
Best for	Podcasters, free-first	Broadcast, legal	Live meetings

Which Tool Should You Use?

If you're starting out and want zero commitment: Use MP3toTXT. No credit card, no setup: sign up free, get 10 credits and upload.

If you need broadcast-quality captions for video: Rev's human service is worth the premium.

If you spend half your day on Zoom calls: Otter.ai's meeting-first feature set pays for itself.

The Bottom Line

"Free podcast transcription tool" is a phrase that gets abused a lot. Most tools put "free" in their marketing but hide the real limitations. MP3toTXT is the most genuinely free-first option for podcasters who want accurate transcripts of pre-recorded audio without pulling out a credit card on day one.