Text utilities
Local RegExp Tester for Mac and iOS
Test regular expressions against sample text. Blissum keeps this utility local on macOS, iPhone, and iPad so you do not have to paste code, tokens, certificates, URLs, or private text into random online tools.
A private alternative to online regex tester tools
Test a regex pattern against sample text, navigate matches, preview replacement output, and adjust options such as case-insensitive matching, comments and whitespace, dot-matches-newlines, multiline anchors, and Unicode word boundaries. Blissum is useful for building and debugging regexes against logs, copied text, and examples locally. It gives Mac and iOS users a native alternative to online regex testers.
Blissum groups everyday code, text, data, and web utilities into one local app for Mac, iPhone, and iPad, which is especially useful where iOS has fewer native developer-tool options.
Useful for
This page intentionally covers the practical ways people describe the same workflow, especially when they want a native, local, or offline option instead of a web-based tool.
- RegExp Tester on Mac without opening an online tool
- RegExp Tester on iPhone or iPad
- A private alternative to regex tester websites
- Offline RegExp Tester for snippets that should stay on your device
- People may search for it as: regex tester
- People may search for it as: regular expression tester
- People may search for it as: test regex locally
Related Blissum tools
Use RegExp Tester locally in Blissum
Download Blissum when you want this utility alongside other local developer tools for text, code, data, web, and security workflows on macOS, iPhone, and iPad.