Side by side
AppTools Regex Tester vs regex101
Both stand on regular expression testers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan AndroidiPhoneLinux+3
The tester offers pattern explanations, debugging, and several regex flavors without requiring sign-up or installation. Readers concerned about telemetry should note that AppTools collects anonymous tool-popularity data.
Visit AppTools Regex Tester Free plan APILinuxSelf-hosted+1
regex101 combines multi-flavor pattern testing with explanations, debugging and export options. The free plan is limited to one test string, while Pro adds larger workflows at the listed yearly-billed monthly rate.
Visit regex101The facts
| AppTools Regex Tester | regex101 | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Android, iPhone, Linux, Mac, Web, Windows | API, Linux, Self-hosted, Web |
| Lowest paid plan | Free or on request | Pro: €4.99 a month |
| Plans published | 1 | 3 |
| Maker | Not published | Not published |
| Website | apptools.me | regex101.com |
| On regular expression testers | #1 of 23 | #2 of 23 |
AppTools Regex Tester: what it does well
- Matches update as patterns change
- Supports five regex flags
- Parser explains tokens in readable steps
- Test strings stay in the browser, according to the maker
What to know first
- Anonymous telemetry about tool popularity is collected
- Cookies and local storage retain preferences and language
regex101: what it does well
- Supports ten listed regex flavors.
- Explains pattern matching according to the selected flavor.
- Exports results as JSON, JSON Lines, CSV or text.
- Free plan includes core tools and saved workspaces.
- Self-hosted Enterprise deployment is documented.
What to know first
- Free plan allows one test string.
- Workspace API does not offer remote matching.
- Saving or sharing workspace input can send it to the service.
- Pro is €4.99 a month, billed yearly.
Alternatives to AppTools Regex Tester Alternatives to regex101 The whole list

