Escape or unescape special characters with backslashes. Handles newlines, tabs, quotes, and more. Code never leaves your device — formatting and validation run locally in your browser.
Content reviewed October 2026 · About Toolzum
Generate CSS code interactively for box shadows, gradients, border radius, transforms, filters, and more. Code never leaves your device — formatting and validation run locally in your browser.
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.
Provides an interactive environment where users can write a regular expression pattern, test it against sample strings, and view real-time match. Code never leaves your device — formatting and validation run locally in your browser.
Generate invisible Unicode characters and blank text for bios, usernames, and formatting tricks. Post empty messages anywhere — free, local, copy-paste ready.
Extract text from a PDF and translate it between 20 languages. Output is plain text (PDF formatting is not preserved). Text limited to 5,000 characters.
Quotes, backslashes, and newlines for safe embedding anywhere.
Already-escaped input flagged — escaping twice corrupts output.
JS and JSON-style escaping plus the other common string variants.
No — escaping runs locally in your browser, free with no signup.
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.