300+ Free Online Tools for Everyone
Calculators, converters, text and color tools, security and developer utilities — everything you need in one place, for everyday users and pros alike. Free, no signup.
⭐ Popular Tools
Enter your IP and port to generate reverse shell one-liners for bash, python, nc, PowerShell and more.
Searchable reference of Unix/Linux binaries for shell escape, SUID/sudo privilege escalation, file read/write and capability abuse — with explanations.
Searchable Windows privesc reference: token abuse (SeImpersonate/Potato), service misconfigs, AlwaysInstallElevated, registry, scheduled tasks, DLL hijack, UAC bypass and credential theft — with explanations.
Explained command reference for every phase of a pentest: enumeration, Nmap, SMB, web, password attacks, privesc, pivoting, Active Directory and more. Searchable, one-click copy.
Paste a hash and identify its likely type (MD5, NTLM, bcrypt, SHA, Kerberos…) plus the correct hashcat -m / john format.
Compute a CVSS 3.1 base score: click the metrics, get the score, severity rating and vector string instantly — with explanations.
Searchable, explained payload reference for XSS, SQL injection, LFI, command injection, SSTI, SSRF and XXE. One-click copy.
Online stopwatch with laps and a countdown timer. Runs in your browser, no install needed.
Crop any image by dragging a selection and download the result as PNG — right in your browser. No upload, fully private.
Pick any color and instantly get its HEX, RGB and HSL values, with preset swatches and a live preview.
Search hundreds of emojis and copy any with one click — a fast, categorized emoji board.
A simple browser notepad that autosaves your text locally, with word count, .txt download and copy.
Measure your words-per-minute (WPM) and accuracy with a quick typing test on random sentences.
Enter options and spin the wheel to pick a random winner — perfect for decisions and giveaways.
Generate favicons (16–512 px PNG) from an emoji, letter or image — right in your browser. No upload, private.
Scale images to any pixel size in your browser and download. Aspect-ratio lock, no upload, fully private.
Compress JPG, PNG and WebP images by adjusting quality — in your browser. Shrink file size, no upload.
Beautify, minify and validate your JSON data
Convert JSON format to YAML format
Encode text or files to Base64 format
Decode Base64 to original text or file
Encode URL or text using URL encoding
Decode URL encoded text
Test regular expressions in real-time with match highlighting
Calculate network information from IP and subnet mask
Convert between Unix timestamps and human-readable dates
Build cron expressions with a visual interface
Generate strong and secure passwords
Generate UUID v1, v4, v7 and ULID (bulk generation)
Generate QR codes with custom colors and sizes, download as PNG or SVG
Beautify, format and minify SQL queries
Markdown editor with real-time preview, download as HTML or Markdown
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📝 Latest from the blog
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What is Markdown, where is it used, and how do you write it? A complete, practical guide covering headings, lists, tables, code blocks, and GFM extras.
In 2026 attackers exploit flaws fast. We explain CVSS scoring, the KEV list, and the assess-prioritize-patch flow from a purely defensive angle.
In 2026 native CSS takes over jobs JS handled for years: container queries, :has(), nesting, subgrid, color-mix() and more.
🆕 Recently Added
Enter your IP and port to generate reverse shell one-liners for bash, python, nc, PowerShell and more.
Build a ready-to-run nmap command by picking scan type, ports, timing and NSE options.
Build your msfvenom command by choosing platform, payload, LHOST/LPORT and output format.
Build a hashcat command by selecting the hash type, attack mode, wordlist and mask.