Analyze your track, embed sync-ready metadata directly into your 24-bit WAV master, and generate a print-ready pitch sheet — all in one browser tab. No cloud. No uploads. No lossy conversions.
Free to analyze. No account required.
Drop any WAV, AIFF, or MP3. Watch spectral analysis populate BPM, key, genre, mood, and energy in real time. No sign-in. No upload to any server.
WAV · AIFF · MP3 · Up to 200MB
Formats: WAV · AIFF · MP3 | 16-bit and 24-bit supported
Every other metadata tool gives you a spreadsheet — or transcodes your lossless master to MP3 just to make tags stick. We write ID3v2 tags and RIFF LIST/INFO chunks natively into your 24-bit WAV or AIFF container.
| Platform | Auto-Tag | WAV Embed | Pitch PDF |
|---|---|---|---|
| Cyanite.ai | ✓ | ✗ | ✗ |
| DISCO.ac | ✓ | MP3 only | ✗ |
| Bridge.audio | ✓ | Platform only | ✗ |
| Mp3tag / TagLib | ✗ | ✓ | ✗ |
| 🔵 Sync Tagger | ✓ | ✓ 24-bit | ✓ |
Not even for 1 millisecond. Every byte of processing runs inside your browser’s sandboxed memory using WebAudio and WebGL APIs. There are no servers to breach.
Major labels refuse to upload unreleased masters to third-party cloud services. Our sandbox makes this the only tool safe for pre-release catalog pitching.
Supervisors query hundreds of files per day. A track without complete metadata doesn’t get rejected — it simply doesn’t appear in their search results.
Multi-engine BPM detection, Krumhansl-Schmuckler key consensus, genre classification, mood mapping, and vocal presence detection. Populates your form in seconds.
ID3v2 tags written directly into 24-bit WAV, AIFF, and 320kbps MP3. RIFF LIST/INFO chunks for maximum DAW compatibility. No transcoding. No quality loss.
One-click export of a print-ready sync one-pager: BPM, Key, Genre, Moods, Instruments, composer splits, ISRC/ISWC codes, and clearance status — formatted for supervisors.
Built-in brickwall limiter and loudness normalizer. Every track meets Spotify, Apple Music, and sync library loudness standards before delivery.
Real-time validation: split percentages must sum to 100%, ISRC format check, email validation, and a full metadata audit report before export.
Drag and drop up to 50 tracks simultaneously. Download a zipped archive of all tagged masters plus a bulk CSV export compatible with DISCO.ac and custom CMS formats.
A single rejected placement costs more than a year of Sync Tagger. Fix your metadata once. Get placed.
| Pain Point | Manual / Cloud Platforms | Sync Tagger |
|---|---|---|
| Tagging 50 tracks | ~6 hours manually | ~12 minutes (batch queue) |
| Cost per 1,000 tracks | $240–$450 (Cyanite API) | $12–$19/month flat |
| Audio security | Uploaded to cloud servers | 100% local, never transmitted |
| WAV metadata persistence | Transcoded to lossy MP3 or stored in-platform | 24-bit WAV + AIFF natively preserved |
| Composer split validation | Manual spreadsheet | Real-time sum-to-100% validator |
| Supervisor pitch sheet | Word template, assembled manually | Auto-generated PDF in one click |
| Mastering to streaming standards | Separate plugin or paid service | Built-in -14 LUFS brickwall limiter |
Less than 5% of a single mid-tier placement fee. Think of it as placement insurance.
Just need a few tracks? Get 10 export credits for $15 — no subscription required.
Free to analyze. No account required. Your audio never leaves your browser.
No credit card. No uploads. No cloud. Just results.