Free developer tools

JSON Formatter Format, validate, and minify JSON in your browser for APIs, configs, and debugging. Base64 Converter Encode text to Base64 or decode Base64 back to readable text. URL Encoder Encode or decode URLs, query strings, and text for safe use in web links. Hash Generator Generate SHA-256, SHA-384, or SHA-512 hashes from text in your browser. Timestamp Converter Convert Unix timestamps to readable dates and convert dates back to Unix time. Regex Tester Test a regular expression against sample text and view matches instantly. UUID Generator Generate random UUIDs for development, testing, mock data, and identifiers. JWT Decoder Decode a JSON Web Token header and payload in your browser without sending it to a server. CSV to JSON Converter Convert simple CSV data into JSON for APIs, spreadsheets, mock data, and developer workflows. XML Formatter Format XML with readable indentation and check for basic XML parsing errors in your browser. HTML Formatter Format HTML markup into a more readable structure for editing, debugging, and quick cleanup. SQL Formatter Make simple SQL queries easier to read by adding line breaks around common clauses and keywords. Color Converter Convert colors between HEX, RGB, and HSL values for design, CSS, and front-end work. Meta Tag Previewer Preview a search result snippet from a page title, meta description, and URL before publishing. Robots.txt Generator Generate a simple robots.txt file with allow, disallow, and sitemap lines for a website.

PDF Tools Merge, split, extract, and rotate PDF files in your browser without uploading documents. Image Tools Resize, compress, and convert images to WebP directly in your browser. Business Tools Generate QR codes, invoices, and small business assets without creating an account. Text Tools Count words, convert case, repeat text, compare text, and prepare content quickly. Calculators Calculate percentages, age, time, tips, and convert common units. Productivity Tools Use quick tools for focus sessions, habits, random choices, and daily decisions. Work Style Tools Plan interview outfits, decode workplace dress codes, match colors, and prepare profile photo looks.