Tools
These free online tools handle common tasks around text, data, PDFs, and web development directly in your browser. Encode and decode Base64, convert colors, inspect DNS records, create QR codes, compare images and text, or merge and split PDFs.
Base64 Converter
Encode and decode text safely.
Color Converter
Convert HEX, RGB, and HSL colors and calculate RGBA overlays.
DNS / DIG
Inspect DNS records and response details.
Excel Address-Converter
Convert column names and numbers.
Image Diff
Review image changes in two comparison modes.
JSON Formatter
Format, validate, and visualize JSON.
JWT Inspector
Decode, create, and verify tokens.
PDF Merge
Combine two scan PDFs containing the fronts and backs of documents.
PDF Split
Split PDFs at visual page boundaries.
QR Code Generator
Share text, links, email, and Wi-Fi.
Online Text Diff
Spot changes line by line.
Timestamp Converter
Convert Unix, local time, and UTC.
Every tool is designed for quick, clear use and processes your input locally on your device where possible. The DNS/DIG lookup clearly identifies its external Cloudflare request, while the other tools keep their inputs in the browser.