All 55 tools, one window — and one page each.

Pretty-print, validate and sort keys, with a JSONPath filter to grab subtrees.

Strip whitespace down to a single line for embedding in headers or env vars.

Round-trip between YAML and JSON without losing comments or quoting.

Convert CSV rows to JSON arrays of objects (and back), header-aware.

Re-indent SQL statements using a dialect-agnostic tokenizer.

Beautify or minify XML with an XPath filter for subtree extraction.

Convert raw HTML to React-friendly JSX (className, self-closing tags, etc.).

Parse PHP's serialize() format and emit JSON, or go the other way.

Inline an SVG as a CSS background-image (URL-encoded data URI).

Generate type definitions (TypeScript, Rust, Go, …) from a JSON sample.

Encode and decode Base64 in URL-safe and standard alphabets.

Convert images to Base64 data URIs and preview them inline.

Percent-encode arbitrary strings or decode them back.

Break a URL into scheme, host, path, query parameters and fragment.

Convert text ↔ hexadecimal bytes.

Escape or unescape HTML entities (&, <, ", etc.).

Decode header + payload + signature, and verify HS256/384/512 signatures.

Escape or unescape control characters (tabs, newlines, quotes…).

Validate Luhn-checked numbers (credit cards, IMEI, ID numbers) and propose the correct check digit.

Parse EMV chip-card data into a nested tag tree with EMV tag names attached.

Decode PEM/DER certificates into issuer, subject, SANs, fingerprints and validity windows.

Convert between binary, octal, decimal, hex and a custom base (2–36).

Convert between epochs (s / ms / µs / ns) and ISO / RFC 2822 / human dates.

Explain a cron expression in English and preview the next runs.

Re-case identifiers to camelCase, PascalCase, snake_case, kebab-case, CONSTANT, Title and more.

Convert HEX (incl. alpha), RGB(A), HSL(A), HSB, HWB and CMYK with a built-in picker.

Turn a curl command into idiomatic JavaScript / Python / Go / Rust HTTP code.

Generate UUID v4, UUID v7, ULID or Nano ID — single or batches, optionally lowercased.

Compute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 in one shot.

Keyed HMAC with the same set of algorithms.

Crypto-grade random strings with selectable character classes and length.

Generate placeholder words or paragraphs.

Render a QR code as SVG (downloadable) at multiple resolutions.

Mint test self-signed certificates with custom SANs and validity.

Generate Luhn-valid TEST card numbers across Visa, Mastercard, Amex, Discover, JCB, Diners and UnionPay.

Live-test and replace with regex; shows captures and match offsets.

Side-by-side rendered preview with GitHub-flavoured Markdown.

Render arbitrary HTML in a sandboxed iframe next to the source.

Tree view of a certificate's fields, extensions and signature chain.

Drop a QR image and read the encoded payload.

Character, byte, word and line counts; codepoint breakdown.

Detect the kind, version and variant of an ID (UUID, ULID, Nano ID, etc.).

Mint an Ed25519 + Curve25519 OpenPGP key pair, ASCII-armored, with an optional passphrase.

Encrypt a message to a recipient's OpenPGP public key (SEIPDv1 / AES-256).

Decrypt an ASCII-armored PGP message with your private key.

Produce a detached, text-normalized OpenPGP signature over a message.

Verify a detached OpenPGP signature against the signer's public key.

Encrypt to a recipient and sign with your key in one inline-signed message.

Decrypt an inline-signed PGP message and verify the embedded signature in one step.

Line-by-line diff with optional JSON / XML normalisation and key sorting.

Sort, reverse, dedupe and trim lines in one pass.

Beautify or minify CSS, SCSS and Less from one input.

Re-indent HTML or strip whitespace, comment-preserving.

Re-indent or compact XML, comment-aware.

Quickly minify JavaScript snippets without setting up a bundler.