Generate glassmorphism CSS — backdrop blur, translucency, borders, and shadows. Build frosted cards that look premium — local generation, free, no signup.
Content reviewed October 2026 · About Toolzum
Design CSS box-shadows visually — offsets, blur, spread, color, and inset. Craft depth that looks designed — local generation, free, no signup.
Generate CSS transforms — rotate, scale, skew, translate — with live preview. Build hover effects without guessing syntax — local generation, free, no signup.
Generate CSS filter chains — blur, brightness, contrast, grayscale, hue-rotate. Grade images without editors — local generation, free, no signup.
Generate placeholder images by URL with custom size, text, and colors — wireframes that look intentional. Fill layouts before assets arrive — local generation, free, no signup.
Generate valid robots.txt with user-agents, allows, disallows, and sitemap lines. Never accidentally deindex with Disallow: / — local generation, free, no signup.
backdrop-filter: blur plus translucent background, subtle border, and soft shadow over colorful content behind. Cards float above gradients best.
backdrop-filter works in all modern browsers (Safari needed -webkit- historically). Provide a solid fallback background for legacy.
Backdrop blur is GPU-heavy — limit to a few cards per view. Full-page glass stutters low-end mobiles.
No — generation runs locally in your browser. Nothing leaves your device.
Random Port Generator
Generate random TCP/UDP port numbers from well-known, registered, or dynamic ranges. Useful for network testing, Docker port mapping, and firewall configuration.
Chmod Calculator
Convert between numeric (755) and symbolic (u=rwx,g=rx,o=rx) chmod permission formats. See detailed breakdown for owner, group, and others.
Docker Run to Compose Converter
Convert docker run commands to docker-compose.yml format. Supports ports, volumes, environment variables, networks, restart policies, and container names.
Email Normalizer
Normalize email addresses by removing dots (Gmail), stripping +tags, and lowercasing. Process multiple emails at once for deduplication and cleaning.
Diff Checker
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors. Code never leaves your device — formatting and validation run locally in your browser.
IP Address Lookup
Displays your public IPv4 and IPv6 addresses with geolocation data (city, ISP, ASN, timezone). Network engineers use it to verify VPN connectivity. Uses cloud-based processing.