Free online tools

Free tools

Practical tools that run in your browser

Invoices, PDFs, image conversions, DNS and email checks, and more. Everything runs locally on this page — your files and text never leave your device.

Documents & PDF

1 tool
Email Signature Generator Design a professional HTML email signature and copy it into your mail client.

Image

2 tools
Colour Picker and HEX / RGB / HSL Converter Pick a colour and get HEX, RGB and HSL values ready to paste. QR Code Generator Turn any URL or text into a downloadable QR code in a couple of clicks.

Security & Email

4 tools
DKIM Key and Record Generator Generate a DKIM key pair and the TXT record to publish alongside it. DMARC Record Generator Assemble a DMARC policy record with sensible defaults for your domain. Phishing Link Checker Inspect suspicious URLs — decode redirects and spot risky patterns. SPF Record Generator Build a valid SPF TXT record for your sending domain step by step.

Utilities

6 tools
Base64, URL and HTML Encoder / Decoder Encode and decode Base64, URL and HTML strings both ways. JSON ↔ CSV Converter Convert between JSON, CSV and YAML with a single click. JSON Formatter and Validator Pretty-print, minify and validate JSON with clear error messages. Strong Password Generator Generate strong, random passwords locally with your browser's crypto. Text Case and Cleaning Tools Change case, trim, sort and clean up text without any manual effort. Word and Character Counter Count words, characters, sentences and reading time as you type.