Best Free Online Find and Replace Tool
Finding and replacing text in large documents — without an IDE or full text editor at hand — is a common need for quick transformations: sanitising exported data, batch-updating placeholder values, normalising formatting in pasted content, or making systematic changes to configuration snippets. devtoolkit.sh's Find and Replace tool handles both plain text and regular expression search, with support for capture groups in regex replacements (using $1, $2 notation). Case-insensitive and whole-word matching modes cover the most common search variations. A match count shows how many replacements were made, and the result is ready to copy with one click. Unlike browser find-and-replace, this tool can operate on text that isn't rendered as a web page — paste any content and transform it on the spot. It's especially useful for renaming variables across a snippet you're editing outside an IDE, converting placeholder text in templates, standardising date formats in exported CSV data, and applying structural transformations to configuration files without writing a throwaway script.
FAQ
- Does it support regex replacements?
- Yes. Enable regex mode and use capture groups ($1, $2) in the replacement string to include matched groups in the output.
- Can I do case-insensitive search?
- Yes. Case-insensitive mode treats uppercase and lowercase characters as identical during search.
- Is there a limit on text length?
- No. The tool processes text of any length in your browser.