23 small tools, one search box

Type a name or alias ("json", "sha256", "epoch") — or paste content and the right tool lights up.

Documents & Media

PDF Tools

Merge, split, arrange, and compress PDFs

QR Toolkit

Generate QR codes and decode QR payloads from images or URLs

Image Converter

Crop, rotate, resize, and compress images with optional server conversion

EXIF Viewer & Cleaner

Inspect, edit, and remove photo metadata in your browser

Markdown for LLM

Convert web pages, URL batches, sitemaps, and rich HTML to Markdown

Network

Certificate Viewer

Parse X.509 PEM certificates and inspect issuer, subject, SANs, and key info

CIDR Calculator

Compute subnet ranges, broadcast addresses, and host counts from CIDR notation

DNS Lookup

Query DNS records through selectable DNS-over-HTTPS resolvers

Encoding & Hash

Text Pipeline

Chain encode, hash, case, JSON, and JWT transforms in a live recipe

Base64 Encoder/Decoder

Encode and decode text, images, and files to/from Base64

URL Encoder/Decoder

Encode, decode, parse, and rebuild URLs and query strings

Hash/HMAC Generator

Generate message digests and HMAC signatures in your browser

JWT Toolkit

Decode JSON Web Tokens and sign or verify HMAC JWT signatures

Data

JSON/YAML/TOML/TOON Formatter

Parse, beautify, minify, and convert structured data

CSV & XML Converter

Convert CSV, TSV, JSON, and XML payloads in the browser

Text Diff

Compare two text blocks with a line-level diff and copyable patch output

Regex Tester

Test JavaScript regular expressions with matches, groups, and replacement output

Timestamp Converter

Convert Unix timestamps, ISO strings, and timezone-local dates

Timezone Toolkit

World clock, meeting overlap, offset diffs, cron schedules, and business hours

Number Base Converter

Convert integers between binary, octal, decimal, hex, and arbitrary bases

Color Converter

Convert between HEX, RGB, HSL, and HSV color formats

Generators

UUID / Nano ID

Generate random UUID v4 and Nano IDs with the Web Crypto API

Password Generator

Generate strong random passwords and tokens with entropy feedback