Browser tools for developers
Fast, privacy-first tools that run locally in your browser.
Format JSON, compare text, and convert data — no uploads. Just open a tool and get it done.
Runs locally (no server upload)
No account required
Built for speed
Text tools
Manipulate and compare text with powerful local tools.
Text Compare
Compare two texts side-by-side and highlight differences (diff) in seconds.
text compare, diff checker, compare text online
Open tool
Trim Text
Remove leading and trailing whitespace from text instantly.
trim text, remove whitespace, text cleaner
Open tool
Sort Lines
Sort lines of text alphabetically, numerically, or by length.
sort lines, alphabetize, sort text
Open tool
Find & Replace
Find and replace text instantly. Supports plain text and regular expressions.
find replace, text replace, regex replace
Open tool
Data & Converters
Convert between formats and encode/decode data safely.
JSON Beautifier
Format (pretty-print) and minify JSON instantly — runs locally in your browser.
json beautifier, json formatter, json pretty print, json minify
Open tool
CSV → JSON
Convert CSV to JSON instantly. Runs locally in your browser.
csv to json, csv converter, csv parser
Open tool
JSON → CSV
Convert JSON to CSV instantly. Runs locally in your browser.
json to csv, json converter, csv export
Open tool
Text → CSV
Convert plain text into CSV format instantly. Runs locally in your browser.
text to csv, text converter, csv generator
Open tool
Base64 Encode / Decode
Encode or decode Base64 strings instantly. Runs locally in your browser.
base64 encode, base64 decode, base64 converter
Open tool
Why Toolpad
Designed for quick debugging and day-to-day developer workflows.
Local-first
Tools are designed to run in your browser so you can work with sensitive data more confidently.
Instant
No setup, no logins. Open a tool and get results immediately.
Simple & focused
Clean UI, keyboard-friendly, and built to do one job well.
FAQ
Quick answers about privacy and how Toolpad works.
Do these tools upload my data to a server?
No. Toolpad is designed to run tools locally in your browser. Nothing you paste is sent to a server.
Do I need an account to use Toolpad?
No account needed. Open a tool and start using it immediately.
Can I use Toolpad on mobile?
Yes. The tools are responsive and work on modern mobile browsers.
Is Toolpad free?
Yes. Toolpad is free to use.