Free caption and transcript tools
In-browser tools for subtitle files, transcripts and recordings. Your file never leaves your device.
Diarization separates voices; it does not identify people. What speaker labels can and cannot tell you, the four ways they fail, and why the recording, not the software, decides how good they are.
Full verbatim keeps every um and false start; clean verbatim keeps every word of substance and nothing else. What each style includes, the same passage rendered both ways, and how to reach either from an automated draft.
The best open transcription model turns an hour of audio into text in about a minute and a half on one consumer GPU. Every number here was measured this month, with the corpus, the commit and the exact commands published.
Spanish transcribes at 3.7% word error and Hindi at 48.5%, on the exact engine FastScribe runs. Every number here comes from 200 FLEURS test clips per language, scored in the open, with the hard case, Hindi, told straight.
Convert subtitle files between SRT and VTT free, right in your browser. Your file never leaves your device. Paste or drop a file and download the converted version.
Check an SRT or VTT file for broken timestamps, overlaps, and ordering problems. Free, in-browser, with a line-by-line report. Nothing uploaded.
Check how long an audio or video file is and how big, right in your browser. See at a glance which FastScribe plan accepts it. Nothing is uploaded.
Work out how many hours of your own time a transcript will cost, typing it yourself against reviewing a software draft. Free, no signup, based on published ratios.
Count the words, characters and sentences in a transcript, with reading and speaking time. Handles caption files by stripping timings first. Nothing uploaded.
Convert subtitle files between SRT and VTT free, right in your browser. Your file never leaves your device. Paste or drop a file and download the converted version.
Shift every caption earlier or later by a fixed number of seconds to fix out-of-sync subtitles. Free, in-browser, SRT and VTT. Your file never leaves your device.
Strip the timestamps and cue numbers out of an SRT or VTT file to get clean, readable plain text. Free, in your browser, nothing uploaded.
Check an SRT or VTT file for broken timestamps, overlaps, and ordering problems. Free, in-browser, with a line-by-line report. Nothing uploaded.
Check how long an audio or video file is and how big, right in your browser. See at a glance which FastScribe plan accepts it. Nothing is uploaded.
Work out your words per minute from a transcript and a recording length. Free, in your browser, with a plain read of what that pace means for listeners.
Count the words, characters and sentences in a transcript, with reading and speaking time. Handles caption files by stripping timings first. Nothing uploaded.
Rewrap subtitle lines that are too long to read on screen. Splits overlong captions in two and divides the timing. Free, in your browser, nothing uploaded.
Record audio straight from your microphone in the browser, with pause and resume. Nothing is uploaded and no account is needed. Download the file when you are done.
Work out how many hours of your own time a transcript will cost, typing it yourself against reviewing a software draft. Free, no signup, based on published ratios.
Answer two questions and get the transcript format you actually need: TXT, SRT, VTT or DOCX. Free, no signup, with a comparison table.
Check whether a recording is clipped, noisy or too quiet before you transcribe it. Runs in your browser on the audio itself. Nothing uploaded.
Pull the audio track out of a video file in your browser. No upload, no account, and no re-encoding when the file allows a direct copy.
Speak and watch the words appear, using your browser's own speech recognition. Free and no account. Read the note on privacy before you start.