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Head-to-head · Music Tagging Software

Kid3 vs TagRex

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Kid3 #3 in Music Tagging Software 9.1/10 Free plan Free plan✓ 0 of 5 features Visit Kid3
TagRex #7 in Music Tagging Software 7.8/10 Free plan Free plan✓ 5 of 5 features Visit TagRex

Kid3 leads on 0 checks, TagRex on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreKid3 · 9.1/10
  • Free planboth
  • Most featuresTagRex · 5 of 5

Kid3 scores higher on our rubric for music tagging software: 9.1 against 7.8 out of 10; our editors rank them #3 and #7.

Kid3 is the better fit for power users needing broad platform coverage. TagRex is the better fit for free desktop power tagging.

  • Kid3 fits best

    Power users needing broad platform coverage

  • TagRex fits best

    Free desktop power tagging

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.

Side by side

Feature Kid3 9.1/10 Visit ↗ TagRex 7.8/10 Visit ↗
At a glance
Editor score 9.1 7.8
Ranking #3 in Music Tagging Software #7 in Music Tagging Software
Best for Power users needing broad platform coverage Free desktop power tagging
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop, Mobile Desktop
Platforms Linux, Windows, macOS, Android Windows, macOS, Linux
Support Docs Docs
Integrations 4 integrations 5 integrations
Built for Solo, Small business Solo, Small business
Features Kid3 0/5 · TagRex 5/5
Batch tagging Not checked yet ✓ (best)
MusicBrainz lookup Not checked yet ✓ (best)
Embedded cover art Not checked yet ✓ (best)
Folder or file renaming Not checked yet ✓ (best)
Duplicate detection Not checked yet ✓ (best)
Specs
Audio formats supported Not checked yet 12 formats
Supported platforms Not checked yet Windows, macOS, Linux
Our review
Pros
  • Batch-edit and convert ID3v1 and ID3v2 tags across multiple files
  • Runs on Linux, Windows, macOS, and Android
  • Imports album data from four services and supports scripting interfaces
  • Batch change plans include per-row scope and transactional undo.
  • Five metadata lookup sources: Discogs, MusicBrainz, Beatport, Bandcamp and Soundeo.
  • Runs on Windows, macOS and Linux with renaming, artwork and export tools.
Cons
  • Focused on metadata rather than multitrack audio editing
  • No cloud collaboration for shared library workflows
  • No MIDI sequencing, noise reduction, or video sync features
  • Desktop deployment only; there is no mobile or web edition.
  • macOS downloads are Apple-Silicon only; Intel Macs are not built.
  • Support is provided through documentation rather than listed live channels.
Our verdict

Kid3 is an open-source audio metadata editor for people who need to organize tags across a mixed device collection. It runs on Linux, Windows, macOS, and Android, with desktop and mobile deployment. Rather than editing recorded audio, it…

Read the review →

TagRex is a free, open-source desktop audio tag editor for Windows, macOS and Linux. It is aimed at solo users and small teams organizing personal music collections who want direct control over metadata, filenames, artwork and exports. The…

Read the review →
  1. Kid3Music Tagging Software 9.1Free plan
  2. TagRexMusic Tagging Software 7.8Free plan

Strengths and trade-offs

  • Kid3 — where it wins

    • Batch-edit and convert ID3v1 and ID3v2 tags across multiple files
    • Runs on Linux, Windows, macOS, and Android
    • Imports album data from four services and supports scripting interfaces

    Where it doesn't

    • Focused on metadata rather than multitrack audio editing
    • No cloud collaboration for shared library workflows
    • No MIDI sequencing, noise reduction, or video sync features

  • TagRex — where it wins

    • Batch change plans include per-row scope and transactional undo.
    • Five metadata lookup sources: Discogs, MusicBrainz, Beatport, Bandcamp and Soundeo.
    • Runs on Windows, macOS and Linux with renaming, artwork and export tools.

    Where it doesn't

    • Desktop deployment only; there is no mobile or web edition.
    • macOS downloads are Apple-Silicon only; Intel Macs are not built.
    • Support is provided through documentation rather than listed live channels.
  • Kid39.1/10 · Free plan

    A free, open-source tag editor with broad platform support and automation depth.

    Visit Kid3Full verdict →
  • TagRex7.8/10 · Free plan

    A free, open-source batch tag editor for detailed control of personal music collections.

    Visit TagRexFull verdict →

More comparisons

All music tagging software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update