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Turns any YouTube link into a playable karaoke game by auto-generating timed lyrics and a vocals-removed backing track, instead of needing pre-made karaoke tracks.
FreeNo sign-up
What to know▼
How it works
ML pipeline auto-builds timed lyrics, target melody, and vocals-removed backing track from a YouTube link or uploaded audio; UltraStar charts also import.
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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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A free pomodoro focus timer with built-in lofi radio, ambient sounds, and a zen fullscreen mode.
FreeNo sign-upNo ads
What to know▼
How it works
A pomodoro focus timer set inside painted rainy scenes with built-in lofi radio, ambient rain/thunder/campfire layers, a task list, focus streaks, and a zen fullscreen mode.
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A free, no-account multiplayer music game powered by Spotify where players submit songs for a topic and vote anonymously, playable instantly in the browser as a Music League alternative.
FreeNo sign-upNothing to install
What to know▼
How it works
Players pick a topic, submit a song via Spotify, and vote anonymously on others' picks, all inside the browser with no signup.
Pricing
Free.
Best for
Groups of friends who want a casual, anonymous music-picking game without creating accounts.
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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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Browser-based MP3-to-MIDI converter with a piano roll editor for fixing AI transcription mistakes, processed locally.
FreeNo sign-up
What to know▼
How it works
Converts MP3 to MIDI with AI transcription, then lets you fix wrong notes, adjust timing, and tweak velocity in a browser piano-roll editor before downloading a clean MIDI.
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Tracklyst lets audio engineers share lossless music with clients by streaming directly from Dropbox or OneDrive, with timestamped feedback and no uploads.
No sign-up
What to know▼
How it works
streams WAV, FLAC, and AIFF directly from a connected Dropbox or OneDrive folder; clients open a link with no account, leave timestamped notes on the waveform, and always hear the latest version; supports version stacking, loudness normalization, and Stripe payment gating
Best for
mixing and mastering engineers sending revisions to clients for feedback
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Turns real birdsong recordings into a playable beat machine you tap or trigger from the keyboard, with beats recordable and shareable as a browser link, free with no account needed.
FreeNo sign-up
What to know▼
How it works
Tap a grid of birds (or use your keyboard) to trigger birdsong samples, sustain and pitch-bend them, then record a beat and share it as a link that replays in a browser.
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Feeds any audio file through 37 sound-shaping modules to generate hours of unique ambient atmosphere, running fully offline on Mac or Windows with no subscription.
FreeNo sign-upWorks offline
What to know▼
How it works
Takes any audio file, stretches, layers and reshapes it into long, evolving ambient soundscapes using 37 sound-shaping modules and 18 presets. Includes a seed system to reproduce or vary a render.
What's different
Runs fully native and offline on macOS and Windows with no account, subscription or cloud upload, and every render is unique with no looping.
Pricing
No subscription, tagged as free / one-time payment.
Best for
Musicians and sound designers who want long, non-repeating ambient atmospheres exportable for music, games, film or meditation.
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An iOS app that fixes Bluetooth audio lag for music practice, auto-calibrating playback so musicians can play along to backing tracks in sync.
FreeNo sign-upWorks offline
What to know▼
How it works
Uses an Objective Chirp calibration to measure Bluetooth round-trip audio delay (typically 230-310ms) and automatically aligns playback, with one-tap calibration, aligned playback with M4A export, three-track Layered Takes in Pro, a built-in metronome and tuner, all running on-device.
What's different
Claims a 99% first-attempt calibration success rate against a known, longstanding iOS Bluetooth latency problem.
Pricing
Free to download; Plus and Pro are one-time purchases.
Best for
Musicians practicing along to backing tracks over Bluetooth headphones or speakers.
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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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Plays FLAC, ALAC, DSD and WAV bit-perfect with EQ auto-tuned to your specific headphones from a library of 6,000+ models, everything stored on-device, no login.
No sign-upWorks offlineNo subscription
What to know▼
How it works
Plays lossless/hi-res audio (FLAC, ALAC, DSD, WAV) bit-perfect with no re-encoding, and auto-tunes EQ for your specific headphones from a library covering 6,000+ models. Includes synced lyrics, themes, sleep timer and playlists.
What's different
100% offline and private by default, with optional Dropbox/OneDrive cloud streaming.
Pricing
No subscription.
Best for
Audiophiles who want bit-perfect playback and headphone-specific EQ without a subscription or cloud lock-in.
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Give it 10 seconds of singing and it returns instant, non-judgmental feedback. For complete beginner singers who don't know music theory or want to sing in front of anyone.
FreeNo sign-up
What to know▼
How it works
You sing for 10 seconds and it analyzes your pitch, range and stability, then returns plain-English feedback and a daily home exercise; a free Sing mode also lets you sing anything for up to 60 seconds for warm, specific feedback.
What's different
Built specifically for complete beginners with no music theory knowledge, unlike apps aimed at singers who already read music.
Pricing
Free Sing mode is available.
Best for
Complete beginner singers who want honest feedback without the embarrassment of singing in front of another person.
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A free set of browser-based music tools — chord transposer, tuner, capo calculator, chord-sheet maker — for musicians who want quick practice aids without signing up.
FreeNo sign-up
What to know▼
How it works
A collection of browser-based music tools — chord transposer, capo calculator, guitar tuner, tap tempo BPM finder, chord progression generator, piano and ukulele chord finders, and a chord-sheet PDF maker.
Pricing
Free, no sign-up required.
Best for
Guitarists, singers, ukulele players, and pianists who want quick tools for practice, songwriting, or preparing chord sheets.
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A browser-based ambient soundscape generator that builds mood-matched, non-melodic audio for focus or relaxation, using binaural beats and Pomodoro cycles.
FreeNo sign-up
What to know▼
How it works
Asks what you're doing and how you feel, then generates a layered ambient soundscape using a live audio engine, binaural beats, and Pomodoro cycles.
Pricing
Free to try in the browser, no signup required.
Best for
People who want non-melodic background audio for focus, relaxation, or mood matching.
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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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Measures and repairs mix issues in AI-generated music tracks, then masters them to streaming loudness with a full change log.
FreeNo sign-upNo subscription
What to know▼
How it works
Measures an AI-generated music track for issues like a hard high-end cutoff, hazy highs, low-mid mud, and a narrow stereo image, repairs only what it finds, then masters to streaming loudness; every master ships with a full recipe of the loudness, true peak, EQ, and compression changes in dB.
What's different
Same file in, same master out — no randomness.
Pricing
Free to analyze and hear in full, no account; one credit unlocks the download, no subscription.
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A free browser-based interactive album: walk a pixel city and step into buildings to play each track, instead of streaming a normal playlist. A solo passion project, not a tool built for developers.
FreeNo sign-up
What to know▼
How it works
An interactive pixel-art city you walk through in the browser; every shop is named after a track from the album, and stepping inside plays the song.
What's different
You explore the album instead of streaming it as a normal playlist.
Pricing
Free, no signup.
Best for
People who want a different, explorable way to experience an album rather than a standard music player.
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A 90-day porn-quitting program that visualizes progress as a rising sun and blocks trigger apps via Screen Time, for people trying to quit porn, instead of generic habit trackers.
Watch out · No account; private by design.
No sign-up
What to know▼
How it works
Every clean day raises a sun higher; blocks trigger apps with Screen Time and follows a plan built from your answers to beat urges.
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A Chrome extension that overlays animated, word-synced lyrics over Spotify, YouTube Music and SoundCloud while you listen. Free, no account needed.
FreeNo sign-up
What to know▼
How it works
A Chrome extension overlays full-screen animated lyrics with word-by-word, millisecond-precision sync over Spotify, YouTube Music and SoundCloud while you listen.
What's different
Offers 5 visual themes, a see-through mode, and next-line preview, activated with a keyboard shortcut or the extension icon.
Pricing
Free, no account needed.
Best for
People who listen to music on Spotify, YouTube Music or SoundCloud and want karaoke-style animated lyrics on screen.
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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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A free, browser-based directory of 40,000+ live radio stations worldwide, organized by country and genre, playable instantly with no signup or app install.
FreeNo sign-upNothing to install
What to know▼
How it works
A browser-based player streaming more than 40,000 live radio stations from every country, organized by country and genre, with no signup or app install required.
What's different
Plays directly in the browser with no account or app — just pick a country or genre and listen.
Pricing
Free to use.
Best for
Anyone wanting to listen to hometown radio from abroad or explore stations from other countries without downloading an app.
