Find and Replace Text
Literal or regular-expression replace, with case and global options. Runs entirely in your browser, no upload, no sign-up.
Find and replace text in your browser
Paste your text, enter what to find and what to replace it with, and get the result instantly. Everything runs locally in your browser — your text is never uploaded to a server.
Options
- Regular expression — off by default (the find term is matched literally,
so
.*(etc. have no special meaning). Turn it on to use a regex, and reference capture groups in the replacement with$1,$2, or${name}. - Case sensitive — on by default. Turn it off to match regardless of case.
- Replace all — on by default (every match is replaced). Turn it off to replace only the first match.
Examples
- Literal: find
,replace\nis not a newline (literal mode) — use regex mode for escapes. - Regex: find
(\w+)@(\w+)replace$2:$1rewritesuser@host→host:user. - Regex: find
\s+replace
Leave Replace with blank to simply delete every match.
FAQ
Why doesn't \n in the replacement insert a newline?
In the default literal mode, both the find and replace strings are taken exactly
as typed — \n is a backslash followed by an "n". Switch on Regular
expression mode if you want escapes like \n or \t to be interpreted.
How do I reuse part of the match in the replacement?
Enable regex mode and use capture groups: wrap parts of the pattern in
parentheses, then reference them as $1, $2, or ${name} in the replacement.
For example, find (\w+)@(\w+) and replace with $2:$1 turns user@host into
host:user.
Can I replace only the first occurrence?
Yes — untick Replace all. By default every match is replaced (and the match count is reported); with it off, only the first match changes and the rest of the text is left alone.
Is my text sent anywhere?
No. The search and replacement run entirely in your browser via WebAssembly, so you can safely paste logs, config files, or anything private.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool find-replace "Paste the text to search…" 'find=text or regex to find'New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/find-replace/?text=Paste%20the%20text%20to%20search%E2%80%A6&find=text%20or%20regex%20to%20find&replace=replacement%20%28blank%20%3D%20delete%20matches%29®ex=true&case_sensitive=true&global=trueMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.