</> DevTools

Encode or decode Base64 strings

Encode/decode HTML entities

Convert between JSON and CSV formats

Format, validate and beautify JSON data

Query JSON data with JSONPath expressions like $.store.book[*].title

Convert between JSON and YAML formats

Convert Markdown to a downloadable A4 PDF with live preview (GFM supported)

Convert between Unicode escapes and text

Encode or decode URL components

Generate MD5, SHA-256, SHA-512 hashes

Decode and inspect JWT tokens

Generate signed JWT tokens with HS256 from a JSON payload and secret

Generate secure random passwords

Measure password strength with zxcvbn — entropy, crack time estimate, and suggestions, all in-browser

Generate RSA public/private key pairs

Generate random UUID v4 strings

Minify JavaScript, CSS, and HTML to reduce file size

Parse and explain cron expressions

Compare two texts and highlight differences

Preview Markdown with live rendering

Searchable regex reference: metacharacters, quantifiers, groups, flags, and common patterns (email, URL, phone, IP, UUID)

Test regular expressions with live matching

Format and beautify SQL queries

Generate complementary, analogous, triadic, tetradic, and monochromatic palettes from any base color with HEX/RGB/HSL output

Generate CSS border-radius with visual preview

Generate CSS flexbox layouts visually

Generate CSS linear and radial gradients visually

Generate CSS box-shadow with visual preview

Test HTTP requests with custom headers, body, and methods (Postman lite)

Calculate network, broadcast, subnet mask, host range, and address count from CIDR notation (IPv4 and IPv6)

Convert cURL commands to code (Python, JS, Go)

Look up HTTP status codes and their meanings

Look up your IP address and location

Convert between bytes, KB, MB, GB, TB

Convert between HEX, RGB, and HSL colors

Convert between microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, and years

Convert time between different timezones

Convert between Unix timestamps and dates

Parse and edit .env files

Convert images to Base64 data URIs

Generate JSON Schema from JSON data

Generate placeholder text

Decode QR code images locally in the browser — drag and drop or upload to extract URL or text

Generate QR codes from text or URLs

Generate a short code or shareable base64 token from a long URL — stored locally in your browser