Convert audio to text
A free-to-start audio transcriber for any format, any language — one accurate, editable transcript.
By Anubhav Jain, Trustample founder · Updated July 2026 · Claims verified against the live product
Free: 60 min per 30 days, files up to 30 min / 50 MB · Paid plans: 10 to 100 hrs, files up to 2 GB. Big video? Upload just its audio track — same transcript, much faster upload.
Encrypted in transit · audio & video auto-delete in 30 days · never used to train AI
Optional settings
Set this for the most accurate result on quiet or mixed audio.
Get a second copy translated into another language (Pro).
Uncommon words the AI might misspell — list them so they come out right.
Trustample is a general-purpose audio transcriber: MP3, WAV, M4A, AAC, FLAC, OGG and more, converted to text in 16 languages. If it plays, it almost certainly transcribes.
You get more than raw text — every word carries its timestamp, so the transcript stays synced to a built-in audio player. Click a sentence to hear it; click a word to fix it; export in five formats. That editor is what separates a real audio-to-text converter from a dictation toy: transcription gets you to 95%+, and the synced editor makes the last few percent a five-minute pass instead of a re-listen.
A note on names, because the category is muddled: "speech to text" usually refers to live dictation (you talk, it types), while transcribing audio to text means converting a recording that already exists. The recording route wins on everything except immediacy — full-context punctuation, long files, multiple speakers, sixteen languages, and an editor with the audio attached. If your words are already recorded, this is the tool; if you want to type by talking, your device's dictation is free and built in.
How it works
- 1Drop in any audio file — format detection is automatic.
- 2Pick the spoken language (or leave auto-detect) and let the AI work.
- 3Edit inline with the synced player, then export TXT, DOCX, PDF, SRT or VTT.
Frequently Asked Questions (FAQs)
Which audio formats are supported?
All common ones: MP3, WAV, M4A/AAC, FLAC, OGG/Opus, WMA and more — plus video containers like MP4 and MOV, from which speech is read directly.
Is there really a free plan?
Yes: 60 minutes per month, files up to 30 minutes each, with TXT export — no credit card. Basic ($12/mo) adds a 10-hour monthly pool, every export format and speaker labels; Pro ($19/mo) adds 20 hours, AI chat and translation. Prices include taxes.
How is this different from live dictation?
Dictation transcribes as you speak and can't go back. Trustample transcribes finished recordings, so it can use full context — punctuation, long files, multiple speakers, noisy audio — and gives you an editor afterwards.
Can I search my old transcripts?
Yes — your dashboard lists every transcript with instant title search, so a recording from months ago is a few keystrokes away.
Can it transcribe a recording with several speakers?
Yes — on every paid plan, segments arrive labeled Speaker 1, Speaker 2 and so on, renameable once for the whole transcript. Meetings, interviews and panel recordings are the everyday cases this exists for.
How long does transcription take?
Short clips finish in seconds; an hour of audio typically takes 2–5 minutes. Jobs run in the background with automatic retries, so you can upload several files and let the dashboard collect the results.
An honest note: Accuracy follows the recording, not the format: clear, close-mic speech lands in the mid-to-high 90s percent range, while heavy crosstalk or a far-away microphone can push any engine — ours included — into territory where the editing pass takes real time. Test with your own audio on the free plan before committing to a big batch.
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