Free Online Video & Audio Tools
Extract audio, trim tracks, convert video formats, create animated GIFs, and compress media client-side.
Free MP4 to MP3 Audio Extractor
Rip high-bitrate MP3 audio from any MP4 video in seconds.
Free MP4 to Animated GIF Maker
Turn video clips into shareable animated GIFs.
Free GIF to MP4 Video Converter
Convert looping animated GIFs to lightweight MP4 video.
Free WAV to MP3 Converter
Compress heavy studio WAV tracks into portable 320kbps MP3s.
Free MP3 to WAV Converter
Decompress MP3 audio into uncompressed PCM WAV waveforms.
Free MP4 to WAV Audio Extractor
Extract lossless uncompressed WAV audio from video files.
Free WebM to MP4 Video Converter
Convert browser WebM recordings to universal MP4 video.
Free WebM to MP3 Converter
Extract MP3 audio from WebM video clips.
Free MOV to MP4 Converter
Convert Apple QuickTime MOV videos to universal MP4 format.
Free MP3 to OGG Audio Converter
Convert MP3 songs into royalty-free OGG Vorbis audio.
Free Video to Text Transcriber
Transcribe spoken dialogue from MP4 and WebM videos with in-browser speech recognition.
Free Video Mute & Audio Remover
Remove sound tracks and background noise from video files in browser RAM.
Free Video Speed Controller
Speed up (1.5x, 2x) or slow down (0.5x) video playback and export.
Free MP3 Audio Cutter & Trimmer
Cut, trim, and make ringtones from MP3 tracks with waveform preview.
Free MP3 Audio Compressor
Reduce MP3 audio bitrate to shrink file size for attachments.
Free MP3 Speed & Duration Resizer
Change audio speed (0.5x to 2.0x) and boost volume gain.
Free WAV Audio Cutter
Trim uncompressed WAV recordings losslessly.
Free WAV Audio Compressor
Compress WAV tracks by optimizing sample rates and channels.
Free M4A to MP3 Converter
Convert iPhone voice memos and Apple M4A audio to universal MP3 in browser.
Free FLAC to MP3 Converter
Compress lossless FLAC studio masters into high-quality MP3 tracks.
Free OGG to MP3 Converter
Convert Ogg Vorbis and Discord audio clips into universal MP3.
Free AAC to MP3 Converter
Convert AAC streams into standard MP3 audio files.
Free SRT to WebVTT Converter
Convert SubRip (.srt) subtitles to HTML5 WebVTT (.vtt) caption tracks.
Free WebVTT to SRT Converter
Convert WebVTT closed captions into standard SRT subtitle format.
Free Subtitle Transcript Extractor
Strip timecodes from subtitles to extract clean, readable text transcripts.
Why Choose ConvertStuff Free Online Video & Audio Tools?
No hidden subscriptions, no daily limits, and no paid tiers. Every conversion is completely free with no watermarks.
All files are processed in your browser memory via WebAssembly. Your documents and photos never leave your device.
Eliminate server upload delays. Conversions finish in under 2 seconds directly on your device CPU.
Background reading
Audio & DSP · 7 min read
How Web Audio API and WebAssembly Process Media Locally Without Servers
A technical review of client-side audio trimming, gain adjustments, OfflineAudioContext rendering, and PCM buffer encoding.
Read the guideSecurity & Privacy · 6 min read
Security Risks of Cloud File Converters and Why Client-Side WebAssembly Protects Privacy
A technical audit on cloud converter storage risks, multi-tenant server exposure, and how browser WebAssembly processes files locally.
Read the guide