Every small tool, in one place.

Convert between PNG, JPEG, WebP, AVIF, GIF, BMP, TIFF and ICO — HEIC photos from iPhones included.

Resize to fit, fill-and-crop, exact dimensions or a percentage, in bulk.

Shrink photos for the web: re-encode, optionally downscale, strip metadata, and see the savings.

See what a photo reveals — camera, time, GPS location — and download a clean copy.

One image in, a complete favicon set out: .ico, PNG sizes, Apple touch icon, web manifest and HTML.

Pull the dominant colours out of an image, with hex, RGB and share of the picture.

Rotate, mirror, convert to greyscale or centre-crop to a standard aspect ratio.

Read every QR code, Data Matrix, Aztec, PDF417, EAN and Code 128 in a photo or screenshot.

Solid placeholder images of any size with centred text — PNG, JPEG, WebP or SVG.

Stamp a text watermark in a corner, the centre, or tiled across the picture.

Combine several PDFs into one, in the order you add them, with a bookmark per file.

Split a PDF by page ranges, every N pages, or into single pages.

Render PDF pages to PNG, JPEG or WebP at the resolution you choose.

Turn photos, scans or screenshots into one PDF, one image per page.

Extract the text layer of a PDF, page by page. Scanned PDFs without a text layer come back empty.

Metadata, page sizes, fonts, images, encryption and form fields of a PDF.

Rotate all pages or selected pages of a PDF.

Encrypt a PDF with a password (AES-256), or remove the password from one you can open.

Shrink PDFs by recompressing embedded images, deduplicating objects and compressing streams.

Every case at once: camelCase, snake_case, kebab-case, Title Case and more.

Turn titles into clean URL slugs, one per line.

Words, characters, sentences, reading time and the most frequent words.

Compare two texts: a unified diff plus added, removed and changed line counts.

Placeholder text by paragraphs, sentences or words.

Sort, shuffle, reverse, trim and de-duplicate a list of lines.

Test a regular expression: every match with its groups and positions, plus replace.

Render Markdown to clean HTML, as a snippet or a full page.

Validate, pretty-print or minify JSON, with exact error positions.

Convert configuration between JSON, YAML and TOML.

Convert CSV to an array of JSON objects, or JSON records back to CSV (nested keys flattened).

Turn CSV files into an .xlsx workbook (one sheet each), or every sheet of a workbook into CSVs.

Generate TypeScript interfaces, Pydantic models, Zod schemas or Go structs from a JSON sample.

Encode text or files to Base64 (or a data: URI), and decode Base64 back to text or a file.

Percent-encode and decode text, or break a URL into its parts and query parameters.

Escape text for safe use in HTML, or turn entities back into characters.

Decode a JSON Web Token's header and claims and explain its lifetime. The signature is not verified.

Convert integers between binary, octal, decimal, hex and base36 of any size.

MD5, SHA-1/2/3, BLAKE2 and CRC32 of text or files, with checksum verification.

Sign a message with HMAC (SHA-256, SHA-512…), as hex and Base64 — handy for webhook signatures.

Cryptographically random passwords, diceware-style passphrases and PINs, with entropy.

UUID v4, time-ordered UUID v7, ULID, Nano ID, hex tokens and name-based UUID v5.

QR codes for links, text, Wi-Fi, email, phone and contact cards — as PNG and SVG.

Code 128, EAN-13/8, UPC-A, ISBN, Code 39 and ITF barcodes as PNG and SVG, with check digits.

Realistic test records — names, emails, addresses, IBANs — in 12 locales, as CSV, JSON or SQL.

Query A, AAAA, MX, TXT, NS, SOA, CAA and more through public resolvers, with TTLs.

Check a domain's MX, SPF, DMARC, DKIM, MTA-STS and BIMI setup, with a pass/fail verdict per record.

Inspect a server's TLS certificate: issuer, SANs, expiry, key, protocol and cipher.

Follow a URL's redirect chain and inspect status codes, response headers and security headers.

Registration data for a domain or IP from RDAP: registrar, dates, status, name servers, network owner.

CIDR maths for IPv4 and IPv6: network, broadcast, host range, mask, wildcard and subnetting.

See a page the way search engines and chat apps do: title, description, Open Graph, Twitter card, canonical and headings.

Explain a cron expression in plain English and list its next run times in any time zone.

Convert Unix timestamps (s, ms, µs, ns) to dates and back, across time zones and formats.

Convert a meeting time between zones, with working-hours flags. Knows every IANA zone and DST rule.

Beautify or minify SQL, XML, HTML and CSS.

Convert between HEX, RGB, HSL and OKLCH, build tints and shades, and check WCAG contrast.

Translate Unix permissions between octal and rwx notation, with a per-role breakdown.