Small text tools that respect your data
Every tool on PartToolHub runs entirely in your browser. There is no upload, no account and no waiting — paste, adjust, copy.
All tools
Converters & Formatters
Reshape data from one form into another without leaving the browser.
Column to Comma Separated List
Join one-per-line values into a single delimited line, with presets for SQL, JSON and Python.
Open tool →Comma Separated List to Column
Split any delimited text into one item per line; separator detected automatically.
Open tool →JSON Formatter & Validator
Beautify or minify JSON and see exactly where a syntax error is.
Open tool →Python Dict to JSON
Paste a printed Python dict and get valid JSON with proper quotes, true/false and null.
Open tool →Text Tools
Fix, clean and tidy plain text in one paste.
Title Case Converter
Capitalize headlines and titles by style guide, or switch to sentence, upper or lower case.
Open tool →AI Text Cleaner
Strip Markdown, em dashes, smart quotes, emoji, citations and hidden characters from AI output.
Open tool →Remove Duplicate Lines
Keep only unique lines from a list, with case-insensitive and trimming options.
Open tool →Encoders & Decoders
Encode, decode and inspect tokens and strings.
JWT Decoder
Inspect the header, claims and expiry of a JSON Web Token without sending it anywhere.
Open tool →Base64 Encode / Decode
Convert text to Base64 and back, including UTF-8 and URL-safe variants.
Open tool →URL Encode / Decode
Percent-encode query values or whole URLs, or decode them back to plain text.
Open tool →Why these tools exist
Reshaping data or text is a two-minute job that somehow eats twenty: open an editor, fiddle with find-and-replace, fix the stray trailing comma, repeat. Each tool here does one job well, shows you the result as you type, and stays out of your way.
- Private by design. The pages are static files; the conversion is plain JavaScript on your device.
- Fast on any connection. No frameworks to download, no round-trips to a server.
- Honest about what changed. Counters tell you how many items went in, came out and were dropped.