local / regex batch / privacy-first
Preview multiple regex replacements.
Apply ordered rules locally and review each rule's match count and before/after text.
Prepare replacements
Source text up to 1 MiB. Up to 10 rules, 2,048 characters per pattern/replacement, and 1,000 matches per rule.
Rules (applied top to bottom)
Enter text and ordered rules, then preview locally.
| Rule | Matches | Before | After |
|---|
Final text
Scope
- Rules run in visible order, with per-rule match counts and before/after text in the preview.
- Regex execution and CSV saving stay in this browser; there is no eval, Function, upload, external request, or automatic storage.
- This is a multi-rule verification surface separate from the existing single-regex tool.