Voysum
Voysum tools

Turn recordings into text, format by format.

Choose the workflow that matches your file. Every tool leads to the same focused transcript workspace with editable text and timed exports.

Audio transcription

Convert audio to editable text.

Convert audio files to editable text and timed subtitles online with Voysum.

Open tool →Video transcription

Turn video into searchable text.

Convert video to searchable text and subtitle files online with Voysum.

Open tool →MP3 transcription

Convert MP3 to text online.

Upload an MP3 and convert speech to editable text, SRT, VTT, or CSV with Voysum.

Open tool →MP4 transcription

Convert MP4 video to text and subtitles.

Convert MP4 speech to editable text and timed subtitle formats online with Voysum.

Open tool →WAV transcription

Convert WAV audio to editable text.

Convert WAV audio to editable text and subtitle files online. Upload a WAV file and export TXT, SRT, VTT, or CSV with Voysum.

Open tool →M4A transcription

Convert M4A recordings to clean text.

Convert M4A voice recordings to editable text, SRT, VTT, or CSV online with Voysum.

Open tool →WebM transcription

Convert WebM to text and captions.

Convert WebM audio or video to editable text and timed caption files online with Voysum.

Open tool →Online speech recognition

Turn recorded speech into useful text.

Convert recorded speech to editable text online and export transcripts as TXT, SRT, VTT, or CSV with Voysum.

Open tool →
46 tools
Runs locally

Video to Audio Extractor

Extract audio from video locally in your browser. Your file is never uploaded.

Open free tool →Runs locally

MP4 to MP3 Converter

Convert MP4 video to MP3 locally in your browser with no file upload.

Open free tool →Runs locally

WAV to MP3 Converter

Convert WAV to MP3 privately in your browser. No upload, signup, or payment.

Open free tool →Runs locally

M4A to MP3 Converter

Convert M4A voice memos and recordings to MP3 locally in your browser.

Open free tool →Runs locally

WebM to MP3 Converter

Extract audio from WebM and convert it to MP3 entirely in your browser.

Open free tool →Runs locally

MP3 to WAV Converter

Convert MP3 to uncompressed WAV locally in your browser.

Open free tool →Runs locally

Audio Cutter

Trim audio locally in your browser and download only the section you need.

Open free tool →Runs locally

Remove Audio from Video

Mute an MP4 by removing its audio track locally in your browser.

Open free tool →Runs locally

Audio Compressor

Compress audio to a smaller MP3 locally in your browser.

Open free tool →Runs locally

Video Compressor

Compress MP4 video locally without uploading it.

Open free tool →Runs locally

Audio Speed Changer

Speed up or slow down audio locally in your browser.

Open free tool →Runs locally

Video Speed Changer

Change MP4 video speed locally in your browser.

Open free tool →Runs locally

Video to GIF Converter

Convert a short video clip to GIF locally in your browser.

Open free tool →Runs locally

Extract Frame from Video

Save a video frame as PNG locally in your browser.

Open free tool →Runs locally

Rotate Video

Rotate an MP4 90, 180, or 270 degrees locally.

Open free tool →Runs locally

Resize Video

Change MP4 video width locally while preserving aspect ratio.

Open free tool →Runs locally

Audio Volume Booster

Increase audio volume locally in your browser.

Open free tool →Runs locally

Audio Volume Normalizer

Normalize perceived audio loudness locally in your browser.

Open free tool →Runs locally

Stereo to Mono Converter

Convert stereo audio to a single mono channel locally.

Open free tool →Runs locally

Change Audio Sample Rate

Resample audio to 16, 22.05, 44.1, or 48 kHz locally.

Open free tool →Runs locally

Change Audio Bitrate

Convert audio to MP3 at 64, 96, 128, 192, or 256 kbps locally.

Open free tool →Runs locally

Audio Merger

Join two audio files into one MP3 locally in your browser.

Open free tool →Runs locally

Video Merger

Join two compatible MP4 videos locally without uploading them.

Open free tool →Runs locally

SRT to VTT Converter

Convert SRT subtitles to WebVTT locally in your browser.

Open free tool →Runs locally

VTT to SRT Converter

Convert WebVTT subtitles to SRT locally and privately.

Open free tool →Runs locally

SRT to TXT Converter

Remove subtitle timestamps and convert SRT to readable plain text.

Open free tool →Runs locally

Subtitle Time Shifter

Shift every SRT or VTT subtitle timestamp forward or backward.

Open free tool →Runs locally

Online Subtitle Editor

Open, edit, and download SRT or VTT subtitles locally in your browser.

Open free tool →Runs locally

TXT to SRT Generator

Turn plain text into timed SRT subtitles locally in your browser.

Open free tool →Runs locally

VTT to TXT Converter

Remove WebVTT timestamps and convert captions to readable text.

Open free tool →Runs locally

ASS to SRT Converter

Convert ASS or SSA subtitles to clean SRT locally.

Open free tool →Runs locally

SRT to CSV Converter

Convert SRT cues into spreadsheet-friendly CSV rows.

Open free tool →Runs locally

SRT to JSON Converter

Convert SRT subtitles into structured JSON locally.

Open free tool →Runs locally

Subtitle Checker & Fixer

Check SRT timing, overlaps, empty cues, and long lines locally.

Open free tool →Runs locally

Subtitle Line Breaker

Reflow long subtitle lines while preserving timing.

Open free tool →Runs locally

SRT Merger

Merge two SRT subtitle files into one timeline locally.

Open free tool →Runs locally

SRT Splitter

Split an SRT subtitle file into two parts locally.

Open free tool →Runs locally

Remove SDH Captions

Remove music, applause, laughter, and sound-description tags from subtitles.

Open free tool →Runs locally

Transcript Word Counter

Count words, characters, lines, and paragraphs locally in your browser.

Open free tool →Runs locally

Speaking Time Calculator

Estimate how long a script or transcript will take to speak.

Open free tool →Runs locally

Remove Timestamps from Transcript

Remove common transcript and subtitle timestamps locally.

Open free tool →Runs locally

Transcript Cleaner

Clean extra spacing, repeated blank lines, and common transcript formatting.

Open free tool →Runs locally

Transcript to Markdown

Format a plain transcript as a clean Markdown document.

Open free tool →Runs locally

Transcript to JSON

Convert transcript paragraphs into structured JSON locally.

Open free tool →Runs locally

Remove Filler Words from Transcript

Remove common filler words from English, Chinese, and Spanish transcripts.

Open free tool →Runs locally

Remove Speaker Labels from Transcript

Strip names and speaker identifiers from transcript lines locally.

Open free tool →
Spoken languages

Transcribe audio in the language you record.

Choose a language-specific workspace to preselect recognition and see guidance for that recording language.

EnglishEnglishAudio to text →EspañolSpanishAudio to text →中文ChineseAudio to text →FrançaisFrenchAudio to text →DeutschGermanAudio to text →日本語JapaneseAudio to text →한국어KoreanAudio to text →PortuguêsPortugueseAudio to text →ItalianoItalianAudio to text →NederlandsDutchAudio to text →हिन्दीHindiAudio to text →
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Start with audio or video.

Upload a supported file and follow its progress on a dedicated result page.

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