“Knowledge is power.” – Francis Bacon

REST API Tester Test any REST API endpoint—choose method, add headers, send JSON, and view the live response. API URL Method GETPOSTPUTDELETEPATCH Headers (JSON) Request Body (JSON, for POST/PUT/PATCH) Send Request Clear All API Response If you ever wanted a no-setup, all-in-one place to test, debug, and learn APIs, the REST API Tester is your […]

JSON to TSV Converter Convert your JSON data to TSV format instantly for spreadsheets, data analysis, and code JSON Input TSV Output Convert to TSV Clear All Everyone loves JSON for coding, APIs, and modern data. But sometimes you need to turn that elegant code into old-school tables for Excel, analytics, or sharing with non-coders.

CSV to TSV Converter Convert your CSV data to clean TSV format, perfect for spreadsheets, code, and bulk data imports CSV Input TSV Output Convert to TSV Clear All If you have ever wrangled spreadsheets, databases, or APIs, you know the pain of dealing with different data formats. CSV is everywhere, but sometimes you need

CSV to JSON Converter Convert CSV data to JSON format instantly, for APIs, code, and data analysis CSV Input JSON Output Convert to JSON Clear All If you have ever worked with spreadsheets, exported data, or tried to load information into a web app, you have definitely run into CSV files. They are everywhere, from

CSV to Excel Converter Convert CSV data to an Excel (.xlsx) file instantly—download, share, and analyze with one click CSV Input Download Excel File Download Excel (.xlsx) Clear All If you have ever worked with spreadsheets, exports, or web apps, you have seen CSV files. They are simple, universal, and everywhere but sometimes you really

PX to REM Converter Convert pixel (px) values to rem units instantly for scalable, accessible web design Pixel (PX) Value Base Font Size (px) 16 REM Output Convert PX to REM Clear All I still remember the “aha!” moment when I realized why modern web design loves rem units. If you are a designer, developer,

REM to PX Converter Convert rem units to pixels (px) instantly, for CSS, design, and responsive layouts REM Value Base Font Size (px) 16 Pixel (PX) Output Convert REM to PX Clear All I still remember the first time I tried to style a website and saw a rem unit in the CSS. I thought,

XOR Calculator Calculate the result of the XOR (exclusive OR) operation for two or more numbers, binary, or hex values instantly in your browser Input Values XOR Output Calculate XOR Clear All I see so many developers and students wrestle with XOR calculations, especially when they mix binary, decimal, and hex. The XOR Calculator lets

Base64 Decode Tool Convert Base64 encoded strings back to readable text instantly in your browser Base64 Input Decoded Output Decode Base64 Clear All I have always enjoyed seeing how the internet hides and delivers information. Base64 encoding turns regular text and data into a special, web-safe format, but sometimes you get a block of Base64

Base64 Encode Tool Turn any text or data into Base64 format for safe storage, transfer, and embedding Text to Encode Encoded Output Encode Base64 Clear All I have always been fascinated by how the web keeps data safe and portable. Sometimes you need to send special text, images, or files through an email, an API,