Tool
Find and Replace
Find and Replace
Search and replace text or code using advanced regex support, case sensitivity, whole word matching, and more—all powered by Monaco Editor. With a large library of preset find/replace rules, this tool makes it easy to clean up HTML, reformat JSON, fix encoding issues, and much more. Perfect for QA engineers, content editors, and anyone working with structured or unstructured text. Preview matches live, use smart presets, and export results with a clean, modern UI that’s fast and fully in-browser.
Make bulk text edits safely with preview and export.
Matching and replacements run locally in your browser. No text is sent to a server.
Examples
Load a real-world cleanup flow to see the pattern.How it works
This tool lets you find and replace any string or pattern across a block of text or code. With full regex support, case options, and a massive set of prebuilt rules, it's a versatile solution for teams and content editors alike.
Use it to apply repeatable text transformations with regex, presets, and live preview.
What you can do with it
- Full support for regular expressions, including multi-line and global matching.
- 20+ curated preset rules for cleaning HTML, fixing punctuation, escaping/unescaping, and more.
- Live preview of all matches and their replacements with match count display.
- Monaco Editor-powered interface with syntax highlighting and large-file support.
- Output can be copied, downloaded, or chained into other toolkit tools.
Common tasks
- Strip HTML or normalize whitespace.
- Fix broken formatting in long text blocks.
- Apply a repeatable cleanup rule set.
Quick steps
- Paste or type text/code into the input editor on the left.
- Enter your find and replace values manually, or select a preset rule to instantly transform the input.
- Use options like 'Regex', 'Case Sensitive', and 'Whole Word' to refine matching.
- Enable Live Preview to see output update as you type.
- Click 'Replace' to see the modified output in the right-hand editor.
- Use the copy or download buttons to export the updated content.
Before you start
- Paste text or code in the left editor.
- Choose a preset or enter your own pattern.
- Toggle Live Preview if you want instant output updates.
What you get
- Live preview of replacements.
- Downloadable or copyable cleaned output.
- Match counts and output stats for quick verification.
Common pitfalls
- Regex patterns can match more than expected.
- Case sensitivity affects match counts.
Tips for best results
- Paste raw input so the tool can apply formatting consistently.
- If output looks wrong, validate the input for missing commas or tags.
- Use the example buttons above to sanity-check formatting and behavior.
Accuracy & limitations
- Outputs are deterministic and based only on the input you provide.
- When official specs exist, the tool favors strict parsing over guesses.
- URL-based tools can vary by region, cache, or upstream availability.
- Always validate critical outputs in your production systems before launch.
Trust & quality
- Uses native JavaScript RegExp with visible flags.
- Previews matches before replacing to avoid surprises.
Who it is for
- QA and support teams validating outputs before launch.
- Analysts and operators who need fast clarity on raw data.
- Engineers and technical writers documenting system behavior.
When to use this tool
- You need a quick answer without scripting or a full IDE.
- You want a repeatable, shareable output for teammates.
- You are troubleshooting inconsistent or malformed input.
Quick checklist
- Input is complete and copied in full.
- Output matches expectations and no errors are shown.
- Share or export the result if you need to keep a record.
Frequently asked questions
Is it free to use?
Yes. Core tools are free and accessible without signup.
Does it upload my data?
This tool runs locally in your browser. Data you paste or files you upload stay on your device and are not uploaded.
What if I spot a bug?
Please reach out via the Contact page with a reproduction example.
Does it support regex?
Yes. Enable Regex to use JavaScript regular expressions.
Why is my regex failing?
Invalid patterns will show an error. Check escaping and flags.
Is my text uploaded?
No. All matching and replacement happens locally.
Helpful links
Standards & references
Official specs that inform how this tool interprets data.