Regex Search and Replace is an independent multi-threaded developer search and batch replacement tool for Linux source trees, inspired by classic grepWin workflows.

Key Features:

• Multi-Threaded RegEx and Literal Search: scan source trees across folders with wildcard file masks, excluded directory filters, size/date limits, case sensitivity, dot-matches-newline, multiline, whole-word matching, and automatic NUL-byte binary file skipping.
• Side-by-Side Dry-Run Diff Preview: inspect matched lines with detected file encoding, line numbers, match counts, and highlighted Old vs New replaced lines before modifying any file on disk.
• Safe Batch Replace and 1-Click Rollback: execute multi-file replacements with automatic .bak backup creation and 1-click Undo/Restore rollback, plus cleanup for verified backups.
• Saved Presets and Hit Statistics: save named regex/replace presets in JSON, view hit breakdowns by file extension, and export CSV or TXT reports.
• Bilingual English and Vietnamese interface with instant runtime switching.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by grepWin authors.