TextToolbox

TextToolbox helps you work with text fast — all processing stays on your device.

• Regex Lab — Live match highlight, capture groups, replace preview, explain & cheat sheet • Batch Replace — Multi-rule text replace and real file rename with undo • Encoding — Detect & convert UTF-8, GBK, UTF-16, and more • Format — Validate JSON / XML / YAML; convert JSON ↔ YAML • Diff — Line-by-line compare with difference rate • Encrypt — Base64 and AES-GCM • Stream — Chunked processing for large files

Includes templates, history, favorites, and share as text or image.