Tools that do one thing well.

JSON, regex, hashes, JWT, diffs, encoders, and other tools devs reach for daily.

• JSON Formatter Format, validate, and minify JSON in your browser. Tree view with copyable paths. Nothing is uploaded to a server.
• Base64 Encoder & Decoder Encode and decode Base64 text and files in your browser. Image preview included. No data leaves your device.
• URL Encoder & Decoder Encode and decode URLs and URL components in your browser. Supports component-level and full URL modes.
• JWT Decoder Decode JSON Web Tokens (JWT) and verify signatures in your browser using the Web Crypto API. Nothing is sent to a server.
• Hash Generator Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files in your browser using the Web Crypto API.
• UUID Generator Generate UUIDs in v1, v4, and v7 formats. Bulk generate and download as CSV. Runs entirely in your browser.
• Regex Tester Test regular expressions in your browser. View match groups, run replace operations, and reference the built-in cheat sheet.
• Cron Parser Parse cron expressions into plain English and preview the next 10 run times. Generate cron strings from a form.
• Unix Timestamp Converter Convert Unix timestamps (epoch) to human-readable dates and ISO 8601, in any timezone. Runs in your browser.
• SQL Formatter Format and beautify SQL queries in your browser. Supports MySQL and PostgreSQL dialects.
• Diff Checker Compare two blocks of text side-by-side or inline. Highlights additions, removals, and changes. Runs in your browser.
• CIDR & Subnet Calculator Calculate IPv4 subnet ranges, network/broadcast addresses, usable host counts, and CIDR notation. Runs in your browser.
• Markdown to HTML Convert Markdown to clean HTML in your browser with live preview. Copy as HTML or download.

Apache configs, certificates, cron jobs, and sysadmin utilities.

• .htaccess Generator Generate Apache .htaccess snippets for redirects, HTTPS forcing, caching, compression, and hotlink protection.
• .htpasswd Generator Generate .htpasswd entries with bcrypt or MD5-APR1 in your browser. Used for HTTP Basic Authentication on Apache.
• Cron Job Builder Build cron job entries from a form. Get the cron expression and full crontab line ready to copy.
• SSL Certificate Decoder Paste a PEM-encoded SSL certificate to see issuer, validity dates, SANs, fingerprint, and more. Decoded in your browser.

Income tax, GST/HST/PST, mortgages, and other Canada-specific financial calculators.

• Canadian Income Tax Calculator Calculate your 2026 federal and provincial income tax in Canada. Estimates CPP, EI, and after-tax income for every province and territory.
• GST / HST / PST Calculator Calculate Canadian sales taxes by province. Forward and reverse calculations for GST, HST, PST, and QST.
• Canadian Mortgage Calculator Calculate Canadian mortgage payments with CMHC insurance, stress test qualification, and accelerated bi-weekly options.
• Statutory Holidays & Business Days View Canadian statutory holidays by province and count business days between any two dates.
• Hourly ↔ Salary Converter Convert between hourly wage and annual salary in Canada with provincial take-home pay estimates including CPP and EI.

Passwords, QR codes, color conversion, and other day-to-day utilities.

• Password Generator Generate strong, random passwords in your browser. Customize length, character sets, and bulk-generate. Nothing leaves your device.
• QR Code Generator Generate QR codes for URLs, plain text, WiFi networks, and vCards. Download as PNG or SVG. Runs in your browser.
• Colour Converter Convert colours between HEX, RGB, HSL, and OKLCH. Includes a WCAG AA/AAA contrast checker. Runs in your browser.