Converters, calculators, a file inspector and subtitle tools that work in your browser. No accounts, no paywalls; the browser-only tools never upload your file.
MP3, WAV, M4A, OGG, FLAC, Opus, WebM — pick source and target, set bitrate, download.
TrimmerEnter start + end time, trim to a clip, download in the same format. No re-encoding penalty for MP3.
Video → audioMP4 / MOV / MKV / WebM in, MP3 or M4A out. Keep the audio track only.
TranscriptionPaste a URL or upload a file — our server transcribes. Free preview of the opening minutes; packs from $4.
SubtitlesPaste a transcript with timestamps or plain text — get a .srt or .vtt file with standard formatting.
CalculatorLength and format in: whether it uploads as is, how long transcription takes, and which pack covers it.
CalculatorDuration and bitrate in, file size out, for MP3, AAC / M4A, WAV, FLAC and Opus.
CalculatorHow big 720p, 1080p or 4K video is, and how small its audio track is on its own.
GuidePer-hour sizes for every common format, and what they mean for 2, 5 and 10 hour recordings.
InspectorDrop any recording or voice note: real format, codec, length, bitrate and audio tracks, read in your browser, plus what transcribing it takes.
SubtitlesEvery error in a subtitle file with its line number: timestamps, overlaps, numbering, encoding, lines too long or too fast. One-click repaired file.
SubtitlesJoin the SRT files of a recording split into parts, each at its real position, or move every caption earlier or later.
SubtitlesTimecodes out, captions rejoined into paragraphs, YouTube's repeated rolling lines removed. Download a .txt.
TranslateAny of 99 languages, every cue keeps its timestamps — free preview of the opening minutes of a file (the text is sent to our server).
Paste your YouTube / podcast URL in Whipscribe and get a searchable transcript with timestamps in minutes. Free preview of the opening minutes.
Open Whipscribe →Drop the same file here and get a timestamped transcript — instant preview, no signup.
Once the file is ready, send it as it is: see transcribing a long MP3 or M4A, the MP3 to text converter and transcribing a podcast episode.