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Bootleg Toolbox is a free, open-source desktop program for collectors of lossless concert recordings. It covers the everyday jobs traders use Trader's Little Helper for, and adds a few things TLH never had.

It is a single executable for Windows and Linux, with nothing to install: you don't need flac, shntool, ffmpeg or LAME, every decoder and encoder is built in.

What it does

• Checks: verify and create FFP, ST5, MD5 and SFV checksums, decode-test every file, read CD-ready and FFP-ready details and sector boundary errors.
• Lossless analysis: spots MP3, AAC and Opus transcodes (even from 320 kbps MP3s and YouTube rips), upsampling, fake 24-bit and lossyWAV, and recognises FM broadcasts. Every verdict comes with its measurements, a spectrogram with the lowpass drawn on it, and the reasoning.
• Speed analysis: estimates whether a tape runs fast or slow, from the FM pilot tone, the tuning against A = 440 Hz and the mains hum, and shows it on a dial.
• Spectrograms of any track, to copy or save as PNG.
• Torrents for DIME and The Traders' Den, private, seedable on both sites at once.
• Conversions: to FLAC (verified), to WAV, MP3 copies, SBE fix and WAV header clean-up.
• Tag and rename from the show's info file or from setlist.fm, without touching the audio.
• DVDs and videos: a MediaInfo-style summary, and the audio of a DVD title or an MKV/MP4 video extracted to FLAC bit for bit, or as its original stream.
• Share card: a picture of a show and the checks run on it, to post with it.

It reads FLAC, WAV (integer and float), AIFF, SHN, APE, WavPack, ALAC, MP3, MP2, AAC, Ogg (FLAC and Vorbis), M4A, MKA, the audio of MP4 and MKV concert videos, and DVDs.

Safe by design

• Your originals stay as they are. Conversions, MP3 copies, SBE fixes and cleaned WAVs are written as new files. After a verified conversion to FLAC, you are asked whether to move the originals to the trash; nothing is ever deleted outright.
• Tag and rename changes files in place, but only after you have checked everything, only tags and names, never the audio, and it can be undone for 30 days.
• No network access unless you ask: an optional update check, and setlist.fm when you request a setlist, with your own key.
• Open source (GPL-3.0). Every release is built by GitHub Actions from the public source, with SHA-256 checksums and build provenance attestations.

Download

Get the latest version from the Releases page, then see Getting started.

Feedback, bug reports and odd files that trip it up are welcome as GitHub issues.