Comparison · checked October 2026
TabTool vs Tablecruncher
An open-source CSV editor with JavaScript macros and three desktop platforms. TabTool is MIT-licensed and Apple-only, for now.
- Their license
- GPL-3.0
- Their price
- Free
- Their platforms
- macOS 10.15+, Windows, Linux (beta)
Tablecruncher became free and open source in April 2025. It is GPL-3.0, written in C++ with FLTK, and runs on macOS, Windows, and Linux (beta). It opens files over 2 GB, offers JavaScript macros, regex find and replace, and JSON export, and its own FAQ admits the interface will never win a design prize.
TabTool is the other open-source option: MIT rather than GPL, Swift rather than C++, native AppKit and SwiftUI rather than FLTK, and macOS plus iOS. Both projects care about large files, which makes this the most direct comparison on the site.
| Criteria | TabTool | Tablecruncher |
|---|---|---|
| License | MIT | GPL-3.0 |
| Price | Free to build from source | Free |
| Platforms | macOS 14+, iOS 17+ | macOS 10.15+, Windows, Linux beta |
| Language and UI | Swift, SwiftUI + AppKit | C++17, FLTK |
| iPhone and iPad app | Yes | No |
| Large files | 5 GiB tested, 2.7 s index, ~91 MB RAM | Over 2 GB and 15M+ rows; 100 MB in under 5 s (vendor) |
| Macros | No | JavaScript |
| JSON export | No | Yes |
| License for forks | Permissive; keep the notice | Copyleft; derivative work stays GPL |
Swipe the table sideways to see the Tablecruncher column →
Where Tablecruncher is stronger
- Windows and Linux builds, including a beta for Linux.
- JavaScript macros and regex find and replace.
- GPL community and an existing multi-year release history.
Where TabTool is different
- MIT license: easier to embed, relicense, or ship inside another product.
- Native Apple UI and an iOS editor that share one CSV core.
- A measured 5 GiB run with memory and save timings published in the README.
- A narrower scope: no macros, no scripting runtime, fewer moving parts.
Verdict
For a free editor with macros on Windows or Linux, Tablecruncher is the practical choice. For an Apple-native editor with an iPhone app and an MIT license, TabTool is the closer fit. Both are honest open-source alternatives to the paid tools.
Sources
- Tablecruncher tablecruncher.com
- Tablecruncher on GitHub github.com/Tablecruncher/tablecruncher
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