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Turns an audio clip into a captioned waveform video for social platforms entirely in-browser, with auto-captions from local Whisper AI, so audio never leaves the device.
FreeNo sign-upData stays with you
What to know▼
How it works
In-browser reactive waveform visualizer plus Whisper-based auto-captions; exports MP4.
Pricing
Free, no signup, no watermark.
Best for
Podcasters making audiogram clips for Instagram/TikTok/YouTube.
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Turns a song into slowed+reverb, nightcore or daycore right in the browser, free, no install, account or upload, with per-section effects and MP4/WAV/AAC export.
FreeNo sign-upNothing to install
What to know▼
How it works
Turns a song into slowed + reverb, nightcore, or daycore versions in the browser, with real-time tempo, pitch, reverb, timbre, and bass-boost controls, and exports to MP4, WAV, or AAC.
What's different
Split Sections lets you apply different effects to different parts of the same track.
Pricing
Free, with no install, account, watermark, or server upload.
Best for
Creators making slowed-and-reverb or nightcore edits of songs.
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Rewrites your resume bullets and drafts a cover letter for a specific job posting in one click, for job seekers, not recruiters. Your resume stays on your device.
No sign-upData stays with you
What to know▼
How it works
You open a job posting and it scores your match, rewrites your resume bullets for that specific role, and writes a cover letter, in one click.
What's different
Resume never leaves your device, no sign-up required.
Pricing
Free to try; Pro exports a clean, ATS-safe PDF.
Best for
Job seekers who want a tailored resume and cover letter per job posting without creating an account.
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A Chrome extension that strips vocals from any song playing in your browser to make an instant karaoke track, processed locally for free with no uploads or downloads.
FreeData stays with you
What to know▼
How it works
Strips vocals from any song playing in Chrome to turn it into an instant karaoke track, with all processing done locally in the browser.
Pricing
Free.
Best for
People who want to sing karaoke to whatever song is already playing in their browser without downloading or uploading files.
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69 free, browser-based audio and video tools — format conversion, loudness metering, spectrogram viewing, trimming — that run entirely client-side so files never leave your device.
FreeNo sign-upNothing to install
What to know▼
How it works
69 audio and video tools -- hi-res audio analysis, LUFS loudness measurement, spectrogram viewing, format conversion, video trimming -- that run entirely client-side in the browser.
What's different
Files never leave your device since processing is 100% client-side, with no signup, watermarks, or limits.
Pricing
Free.
Best for
Anyone needing quick audio/video processing without installing software or uploading files.
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A free browser-based LUFS meter, stereo imager and EQ analyzer that processes audio locally with no upload or account, plus a preview mode simulating Spotify or YouTube playback. Built for musicians, not developers.
FreeNo sign-upNothing to install
What to know▼
How it works
A browser-based audio mastering analyzer with real-time LUFS metering, stereo imaging, and EQ analysis with resonance detection, plus a preview mode that simulates how a track sounds on Spotify, YouTube, or Apple Music.
What's different
Processes audio 100% locally via the Web Audio API — no upload, account, or server involved.
Pricing
Free.
Best for
Musicians mastering tracks who want quick loudness and EQ checks without uploading audio anywhere.
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Automatically masters audio to Spotify's -14 LUFS loudness standard right in your browser, no upload or account needed — for musicians and producers self-releasing to streaming platforms.
No sign-upWorks offlineData stays with you
What to know▼
How it works
Drop a WAV, MP3 or FLAC file and it masters the audio to exactly -14 LUFS with -1 dBTP True Peak using deterministic DSP (ITU-R BS.1770-4), running entirely in the browser.
What's different
No server upload and no account required — processing happens 100% locally in the browser.
Best for
Musicians, producers and freelancers self-releasing tracks to Spotify, Apple Music, DistroKid, CD Baby, Tunecore or LANDR who want the loudness standard hit automatically.
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An iOS app that separates any audio track into 4 stems entirely on-device, for musicians who want stem separation without uploading tracks to the cloud.
