Test HTTP endpoints instantly

Decode and inspect JWT tokens — header, payload, expiry

Break down and reconstruct URLs with query parameters

Convert cURL commands to fetch/Axios and back

Test CORS configuration and check if requests are allowed

Encode or decode text to/from Base64

Pretty-print, minify, and validate JSON with error highlighting

Convert between JSON and YAML formats

Convert CSV to JSON array and back with custom delimiters

Convert integers between decimal, binary, octal, and hex

Generate cryptographic hashes

Extract URLs, domains, emails, and IPs from large text blocks

Convert between HEX, RGB, HSL, and OKLCH with an instant visual preview

Compare code with normalized whitespace

Encode or decode text in various formats

Format or minify code in various languages

Convert text between different case formats

Test regular expressions with live match highlighting

Write Markdown and see the rendered output side by side

Generate placeholder text by words, sentences, or paragraphs

Convert raw SVG markup into a clean React component with proper JSX attributes

Generate fluid clamp() values for responsive typography and spacing

Convert between human-readable dates and Unix timestamps

Generate UUIDs (v4 random or v7 timestamp-based)

Translate cron expressions to plain English with next run times

Convert datetimes between any two IANA timezones

Generate strong passwords with configurable rules and entropy score

Generate HMAC-SHA256/512 signatures for webhook verification

Build and sign JWT tokens with HS256/HS512 for auth testing

Generate and verify bcrypt and Argon2 password hashes for auth testing

Convert JSON payloads to TypeScript interfaces, Go structs, or Rust structs

Extract timestamp, worker ID, and sequence from distributed Snowflake IDs

Pretty-print and normalize SQL queries across different dialects

Check if a remote port is open or ping an endpoint for reachability

Convert cron expressions into systemd .timer and .service unit files

Visual calculator for bit masking, shifting, and endianness swapping

Calculate IP ranges, netmasks, and broadcast addresses from CIDR notation

Visual Unix permission builder converting between octal and symbolic representations

Generate FFmpeg commands for clipping and converting videos

Generate FFmpeg commands to burn subtitles or watermarks

Generate FFmpeg commands to extract audio from videos

Generate FFmpeg commands to resize and scale videos

Generate FFmpeg commands to extract frames as images

Count tokens and preview text chunks using cl100k_base before hitting APIs