Audio & Video Tools
Video and audio tools that use your browser's built-in media engine, so even large recordings stay on your device. Convert formats, cut clips, shrink files for sharing, extract audio and record from your screen or microphone.
All 35 audio & video tools
Grouped by what they do.
Convert & compress video
7 toolsChange a video's format or make the file smaller.
- Video Converter Change a video’s format or codec on your device — instant when nothing needs re-encoding. Pro tool
- Video Compressor Make a video small enough to send: pick a size in MB or a quality, then compare. Pro tool
- MOV to MP4 Converter Turn .MOV videos from iPhones and Macs into MP4 — usually in seconds, with no loss. Pro tool
- MKV to MP4 Converter Turn MKV into MP4 that TVs and phones play — with your choice of audio and subtitles. Pro tool
- Video to GIF Converter Make a GIF from any part of a video — see the size before you make it. Pro tool
- WebM to MP4 Converter Turn WebM into MP4 that plays everywhere — and fix recordings that cannot be seeked. Pro tool
- GIF to MP4 Converter Turn a GIF into a much smaller MP4 that plays everywhere — frame timing kept. Pro tool
Edit video
8 toolsChange what is in a video and how it plays.
- Merge Videos (Video Joiner) Put several clips together into one video — losslessly when they match. Pro tool
- Video Cropper Cut a video down to the part of the picture you want — vertical, square or any size. Pro tool
- Rotate & Flip Video Fix a sideways or upside-down video in seconds, or mirror a selfie clip. Pro tool
- Mute Video (Remove Audio) Take the sound out of a video in seconds, with the picture copied untouched. Pro tool
- Video Invitation Maker (Indian Weddings & Events) Animated e-invites with your names, photos, music and a map QR code. Pro tool
- Video Trimmer & Cutter Cut a video down to the part you want — instantly and losslessly, or to the exact frame. Pro tool
- Screen Recording Editor (Zoom, Backgrounds, Webcam, Captions) Turn a raw screen recording into a polished demo — zooms, backgrounds, blur and captions. Pro tool
- WhatsApp Status Maker (Split Videos, Fit Photos) Long videos cut into Status-length parts, photos fitted to the phone screen. Pro tool
Convert audio
5 toolsChange an audio file's format, or take the sound out of a video.
- MP4 to MP3 Converter Turn the sound of any video into an MP3, with tags and cover art, on your own device. Pro tool
- Extract Audio from Video Save a video’s sound exactly as it is — or as MP3 or WAV — without uploading anything. Pro tool
- WAV to MP3 Converter Shrink WAV recordings to MP3 with the quality, channels and tags you choose. Pro tool
- M4A to MP3 Converter Change M4A and AAC audio to MP3, with its tags and cover art carried over. Pro tool
- Audio Converter Change any audio file’s format, quality and channels on your own device. Pro tool
Edit audio
4 toolsChange how a recording sounds or what is in it.
- Volume Booster (Audio & Video) Turn quiet recordings up — or loud ones down — without clipping. Pro tool
- MP3 Cutter & Audio Trimmer Cut any audio file on its waveform — frame-accurate and lossless for MP3 and AAC. Pro tool
- Audio Joiner (Merge MP3) Put several audio files together into one, in the order you choose. Pro tool
- Audio Editor (Multi-Track: Cut, Fade, Mix Voice with Music) Cut, fade and mix several recordings on a timeline — on your device, no upload. Pro tool
Record & test
5 toolsRecord from your screen, camera or microphone, and check that they work.
- Screen Recorder Record tutorials, demos and bug reports straight from your browser, no install.
- Voice Recorder Record voice notes, interviews and lectures, safely saved in your browser as you go.
- Webcam Test Check that your camera works and see the resolution and frame rate it really sends.
- Microphone Test See and hear whether your microphone works, how loud it is and how the browser changes it.
- Speaker & Headphone Test Find out whether every speaker plays from the right place, in phase and in balance.
Subtitles & transcripts
3 toolsWork with subtitles, lyrics and transcripts.
- Subtitle Converter (SRT, VTT, ASS) Turn any text subtitle file into the format your player, editor or platform needs.
- YouTube Chapters & Timestamp Generator Paste notes or editor markers, get a chapter list YouTube accepts.
- Audio to Text Transcriber Turn recordings into text and subtitles with Whisper, privately on your own device. Pro tool
Music tools
3 toolsTools for playing, practising and writing music.
- Tone Generator (Frequency Generator) Play any test tone, sweep, musical note or phone keypad tone — and save it as a WAV.
- Online Metronome Steady clicks for practice, with accents, subdivisions and a tempo trainer.
- Online Guitar Tuner (Chromatic) Play a string and see the note, how far off it is and which way to turn the peg.
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Collections with audio & video tools
All collections →Good to know
- All 35 tools run in your browser: what you open or paste is not uploaded.
- 8 of 35 keep working without a connection once loaded.
- 11 of 35 tools use the network for part of their work; each one says on its page what it sends and where.
Other categories
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