buncha/video & audio/ai-master

AI Mastering

What this does. Measures your track's long-term spectral profile across ten frequency bands, compares it to a target (either a genre preset or a reference track you provide), and applies a corrective 10-band EQ followed by a soft-knee compressor and limiter to bring the level to a streaming-ready loudness target. Same idea LANDR / iZotope Ozone use under the hood — just simpler, free, and entirely in your browser.
Audio is decoded and processed in your browser using Web Audio. Nothing uploads.

Pairs well with

Audio Joiner
Combine multiple MP3 / WAV / M4A files into a sing
Audio Loudness Normalizer
Bring any audio file to a streaming-ready loudness
Audio Speed Changer
Speed up or slow down any audio file from 0.5× to
Chord & Key Transposer
Transpose guitar/piano chord charts to any key wit

About AI Mastering

Auto-master a track by spectral matching it to a genre target OR a reference track of your choice. Drop your song, pick a profile (Pop / Hip-Hop / Podcast / Classical / Indie / Broadcast) or upload a reference, set a loudness target (-14 LUFS streaming, -16 podcast, -13 YouTube, -9 club), and the tool applies a 10-band corrective EQ + soft-knee compressor + transparent limiter to get there. Everything runs in your browser via Web Audio — no upload, no sign-in.

Everything happens on your device. Close the tab and it's gone.
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Built browser-first. Run by one developer.
Every tool runs on your device. No tracking pixels, no sign-up to start. The numbers below are pulled live from the registry.
386
Free tools
Across 14 categories
7
Visual editors
PDF · image · video · audio
34
Curated kits
By profession + lifestyle
27
AI tools
Powered by Claude API
Files never uploadNo tracking pixelsNo sign-up neededWorks in any modern browser
The handful of AI tools (paraphrase, summarise, blog, captions, etc.) send your prompt text to Anthropic's Claude API to do the work. Files, images, PDFs and video never leave your device. Pick the tools that fit your privacy comfort.