Tools that don't upload your data — Works with Spotify

5 match your filters — 5 of them answered our check today.

Watching this group for 18 days · how we check

This week3 new arrivals

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Freelancers1

Bursting some Bubbles.

Live

Local-first overlay app for TikTok LIVE streamers with gift alerts, goals, leaderboards, and controller overlays that keep viewer data on the streamer's own PC.

FreeNo sign-upWorks offlineData stays with you
What to know▼
How it works
runs locally, browser-source URLs plug into OBS or TikTok LIVE Studio
What's different
no cloud, no agency funnel, no account needed
Pricing
free

Watched for 2 days · last checked 1d ago

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LufsMaster

Live

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 installWorks offline
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.

Watched for 17 days · last checked 11d ago

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LUFS Mastering

Live

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.

Watched for 18 days · last checked 2d ago

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TrackSpendZ

Live

See Where Your Money Goes - Without Connecting your Bank

FreeNo sign-upData stays with youPay once

First seen today · last checked today

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The ₹upee Report

Live

Local, no-upload visualization of how the Indian government spends tax revenue across categories.

Data stays with youNo tracking
What to know▼
How it works
Visualizes how the Indian government spends tax revenue across 13 categories down to individual line items, entirely on-device.
What's different
No backend, no analytics, no cookies.
Best for
Indian taxpayers curious where their taxes go.

Watched for 3 days · last checked 1d ago

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