Coding Tools

Date git commits back to the past using our git commit backdate command generator tool. Easily backdate commits in your git repository if needed.

Generate a secure BETTER_AUTH_SECRET for Better Auth. Create high-entropy base64 secrets in your browser with no signup or server upload.

Build UTM Links using our UTM Link Generator Tool for your Digital Marketing & Online Ad Campaigns. Fully supported by Google Analytics, Plausible, and other analytics platforms.

Calculate Linux chmod permissions with owner, group, and others toggles. Convert octal and symbolic modes, set special bits, and copy a ready-to-run command.

Calculate an IPv4 CIDR network, broadcast address, netmask, wildcard mask, address range, and usable hosts. Convert prefixes and subnet masks instantly.

Inspect your clipboard contents in detail. View all available MIME types, text, HTML, images, and raw data stored in your clipboard using the modern Clipboard API.

Convert crontab/cronjob expressions into plain English and preview the next 5 execution times with timezone-aware scheduling in your browser.

Build a Content-Security-Policy header for scripts, styles, images, APIs, frames, and more. Start from a preset, validate sources, and copy the result.

Generate cyberpunk-style glitch text effects with pure CSS. Customize RGB split, scanlines, distortion and jitter, then copy the HTML + CSS to your project. No JavaScript required.

Decode and inspect JSON Web Tokens (JWTs), including their headers and payloads, directly in your browser. A free, local tool for debugging JWTs without signup.

Generate custom mailto links with subject, body, CC, and BCC fields. Create HTML email links instantly for your website.

Browse, search, and preview all 1,500+ Microsoft Fluent Emojis in 3D, Color, Flat, High Contrast, and animated styles. Filter by category, skin tone, and keywords. Copy glyphs, unicode, and image URLs.

Generate valid Nginx 301, 302, 307, and 308 redirect configuration for exact URLs or whole path prefixes. Copy or download the config instantly.

Use our free OpenGraph Generator to generate the html meta-tags for OG, Twitter Card Embeds, Discord Embeds, and other Social Media Embeddings for your website.

Convert between px and rem units instantly with a customizable base font size. Includes a common conversions reference table and copy-to-clipboard support.

Test, debug, and visualize regular expressions in real time. See highlighted matches with capture group details, flags, and match positions directly in your browser.

Paste your robots.txt and instantly test whether a URL is allowed or blocked for any crawler: Googlebot, Bingbot, GPTBot, and more. No signup required.

Convert Unix timestamps to human-readable dates and vice versa. Supports seconds, milliseconds, and nanoseconds with live epoch clock, UTC, local time, and relative time display.

Create VAPID public and private key pairs for Web Push in your browser. Copy base64url keys, JWK objects, or a ready-to-use .env snippet—no server upload.

Instantly view your browser user agent string, device type, OS, viewport size, and technical details. Free online user agent checker and parser tool.