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Tool categories

Each category page lists its tools with a short description of what they do.

• PDF Tools 10 tools

  Merge, split, compress, rotate and convert PDF files — most of it without your file ever leaving your browser.

• Image Tools 9 tools

  Compress, resize and convert images between JPG, PNG and WebP, reading GIF, BMP, AVIF and ICO too — all processed on your device.

• Developer Tools 13 tools

  Format and validate JSON, encode and decode Base64 and URLs, decode JWTs, test regular expressions, and generate hashes and UUIDs.

• Text Tools 8 tools

  Count words and characters, convert between text cases, and compare two versions line by line to see exactly what changed.

• Calculators 8 tools

  Percentages six ways — a percent of a number, what percent one is of another, increase, decrease, difference, and the original before a change.

• QR Code Tools 3 tools

  Create QR codes for links, Wi-Fi networks, contacts, email and SMS, and download them as PNG or SVG — generated in your browser.

• Network Tools 17 tools

  Look up IP addresses, DNS records, WHOIS registration and SSL certificates, check domain availability, validate email and detect VPNs and proxies.

• Security Tools 2 tools

  Generate strong random passwords and passphrases, and produce or check bcrypt hashes — all computed on your device, never transmitted or stored.

• Webmaster Tools 6 tools

  Inspect headers, generate robots.txt and sitemaps, and check what search engines see.

• Colour Tools 2 tools

  Convert between HEX, RGB, HSL and OKLCH, build palettes and check contrast.

• Date & Time Tools 1 tool

  Convert Unix timestamps to readable dates and back — seconds, milliseconds and microseconds, ISO 8601, your own timezone and ISO week numbers.

• Data Tools 15 tools

  Convert and clean CSV, JSON, XML and YAML.

• Document Tools 6 tools

  Work with Word, Excel, PowerPoint and plain-text documents.

• Finance Tools 1 tool

  Convert between 50 world currencies, gold, silver and crypto at live mid-market rates, with the timestamp shown on every quote.

Main pages

• Home

  Featured, popular and recently added tools.

• All 101 online tools, A to Z

  The complete catalogue — every tool, grouped by category, on one page.

Company and legal

• About TooloSea

  TooloSea is a growing collection of fast, free online tools. Most run entirely in your browser, so your files never leave your device.

• Contact

  Get in touch with the TooloSea team about a tool, a bug, a partnership or a request for something we do not build yet.

• Privacy Policy

  What TooloSea collects, what it does not, and exactly where your files are processed. Most tools never send anything to a server.

• Terms of Service

  The terms covering your use of TooloSea, including acceptable use, availability and limitations of liability.

• Cookie Policy

  Which cookies TooloSea sets, why, and how to control them. We set none for analytics until you agree.

• Security

  How TooloSea handles uploads, temporary files, transport security and vulnerability reports.

• Disclaimer

  The limits of what TooloSea tools guarantee, and where you should independently verify results.

• Publisher Information

  Who publishes TooloSea, where it is operated from, and how to reach us about privacy, security, copyright or anything else.