Convert between PX and REM units with configurable base font size. Everything runs locally in your browser — nothing is uploaded.
NATO phonetic alphabet converter, ASCII binary converter, Unicode code point viewer, Roman numeral converter, and string obfuscator with leet speak, ROT13, Base64, and shuffle.
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results.
Convert numbers between binary (2), octal (8), decimal (10), and hexadecimal (16) bases with instant swap.
Convert fonts between TTF, OTF, WOFF, and WOFF2 formats. Preview fonts with custom text before downloading. Perfect for web developers and designers.
Convert data sizes between bytes, KB, MB, GB, TB, and PB. Understand disk space and file sizes in different units.
PX to REM Converter lets you convert between PX and REM units with configurable base font size. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Convert between PX and REM units with configurable base font size. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Direct text entry, file upload, or URL-based input — depending on the tool. Common file formats are supported for upload-based tools.
Yes. After the initial page load, PX to REM Converter runs entirely on your device with no internet connection needed. All processing is done locally.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check individual tool descriptions for specifics.
No. All code processing — formatting, minification, conversion, hashing — runs locally in your browser.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. SQL uses sql-formatter, JSON uses native JSON.parse, and other formatters follow widely adopted formatting rules.
Yes. All developer tools work fully offline after the initial page load.
Time Converter
Convert between time units including seconds, minutes, hours, days, weeks, months, and years with precise decimal results.
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.