Password Generator
Create strong random passwords with configurable length and character types.
OpenStatic site powered by JavaScript
Everyday utility tools in one fast, simple place.
tool4geek is a lightweight collection of browser-based utilities. The initial version includes tools for security, engineering calculations, text processing, and web development workflows.
All tools
This section shows every published tool on the site. The collection is expanding across security, engineering, text processing, web development, and daily calculations.
Torque Converter
Convert between kgf-cm and N-m for maintenance, specs, and engineering checks.
OpenText Counter
Count characters, non-space characters, words, and lines in real time.
OpenURL Encoder / Decoder
Encode or decode URLs and query strings directly in the browser.
OpenJSON Formatter
Format, minify, and validate JSON directly in the browser.
OpenBase64 Converter
Convert between regular text and Base64 strings.
OpenUUID Generator
Generate UUID v4 values for testing and identifiers.
OpenSHA-256 Generator
Create SHA-256 hashes from text input.
OpenTimestamp Converter
Convert UNIX timestamps and human-readable date values.
OpenTax Calculator
Calculate tax amount and total price from a base price.
OpenDiscount Calculator
Check savings and the final price after discounts.
OpenHEX Color Converter
Convert HEX values into RGB and HSL with a live preview.
OpenFull-width / Half-width
Convert ASCII text between full-width and half-width forms.
OpenQR Code Generator
Create QR codes from URLs and text strings.
OpenDiff Checker
Compare two strings line by line.
OpenYAML Formatter / Lint
Format YAML and validate syntax.
OpenJSON Lint Checker
Check JSON syntax errors quickly.
OpenMarkdown Lint Checker
Run simple lint checks for heading levels and trailing spaces.
Opennmcli cheat sheet
Build Wi-Fi connect commands from SSID and password; copy common nmcli snippets.
Opensystemctl cheat sheet
Start, stop, enable, and inspect services with copy-ready commands.
Openjournalctl cheat sheet
Follow logs, filter by unit, and check journal disk usage.
Openapt cheat sheet
Update, install, search, and clean up packages with apt.
Openufw cheat sheet
Enable the firewall, allow ports, and manage numbered rules.
Openip / ss cheat sheet
Show addresses, routes, and listening sockets with ip and ss.
Openfind / grep cheat sheet
Find files by name or mtime; search recursively with grep.
Openchmod / chown cheat sheet
Change modes and ownership with common chmod and chown patterns.
Opencrontab cheat sheet
Edit user crontabs and copy example schedules.
Opendpkg cheat sheet
Install .deb files, list packages, and fix broken dpkg state.
Opencurl / wget cheat sheet
Use common download and API request commands with curl and wget.
Opentar / gzip cheat sheet
Archive and extract files using practical tar and gzip commands.
OpenWhat this site offers
tool4geek collects small but practical browser tools that help users finish one task quickly. Instead of installing software, you can open a page and immediately generate a password, convert a unit, count text, or process a URL string.
Because the site is fully static, it is fast to load and easy to host. It also works well with search-focused landing pages where each tool targets a clear use case.