69 pro-grade audio & video tools that run 100% in your browser. Analyze hi-res audio, measure LUFS loudness, view spectrograms, convert formats, trim video — all client-side. Your files never leave your device. No signup, no watermarks, no limits.
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Maker
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I built TrueRes because every "free" audio tool online either uploads your files to a server, slaps a watermark, or caps you at 2 minutes. As an audio engineer, that drove me nuts.
TrueRes runs entirely in your browser using Web Audio API and WebAssembly (ffmpeg.wasm). Nothing is uploaded. Ever. The DSP is real — proper K-weighted LUFS to BS.1770-4, Cooley-Tukey FFT spectrograms, lossy transcode detection, bit-depth forensics.
69 tools across 7 categories: audio analysis, loudness measurement, format conversion, video processing, signal generators, reference utilities, and audiophile testing.
Some highlights:
→ Hi-Res Verifier — detects fake hi-res (upsampled content)
→ LUFS Meter — checks compliance against Spotify, Apple, YouTube targets
→ Batch Album Analyzer — DR scores for entire albums in one table
→ Audio/Video Converter — FLAC, MP3, WAV, MP4, WebM, GIF
→ Vocal Remover — center-channel cancellation, no AI needed
Everything is free. No accounts, no paywalls, no ads (yet). Built with React, TypeScript, Zustand, and Web Workers for non-blocking analysis.
Would love your feedback — especially on which tools to prioritize next.
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privacy angle is genuinely useful, but honestly the biggest thing missing for me is batch processing. if i'm cleaning up a folder of podcasts i really don't wanna drop them in one at a time
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Maker
@asya1yml Thank you! You can multiselect to drag and drop, to start a batch. If it is not working let me know.
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honestly didn't expect 69 tools to actually all work without some paywall popping up. ran a flac through the LUFS meter and a video trim, both were instant, nothing uploaded. kind of wild that this is free
The fact that everything runs client-side with zero uploads is a really smart move for trust, especially with pro audio work where privacy matters. Clean UI too, no clutter getting in the way of the tools.
ok this is genuinely useful, ran an LUFS check on a track without uploading anything which is honestly the part that sold me. weird that more tools aren't built this way
honestly the LUFS meter alone is worth bookmarking, and the fact that everything just runs locally without uploading anything is kind of a relief for once
privacy angle is genuinely useful, but honestly the biggest thing missing for me is batch processing. if i'm cleaning up a folder of podcasts i really don't wanna drop them in one at a time
@asya1yml Thank you! You can multiselect to drag and drop, to start a batch. If it is not working let me know.
honestly didn't expect 69 tools to actually all work without some paywall popping up. ran a flac through the LUFS meter and a video trim, both were instant, nothing uploaded. kind of wild that this is free
@elanuru3dt Thank you! Much appreciated.
The fact that everything runs client-side with zero uploads is a really smart move for trust, especially with pro audio work where privacy matters. Clean UI too, no clutter getting in the way of the tools.
@enolsomandquh Thank you
ok this is genuinely useful, ran an LUFS check on a track without uploading anything which is honestly the part that sold me. weird that more tools aren't built this way
@beratrw8b Thank you
honestly the LUFS meter alone is worth bookmarking, and the fact that everything just runs locally without uploading anything is kind of a relief for once
@emirhan277217 Thank you!