Category · 6 tools
Encoding tools
Encoding is how arbitrary text survives a transport that was never designed for it. These tools handle the three encodings you meet most often on the web, in both directions, with full Unicode support.
Base64 Decoder
Decode Base64 back to readable text, with support for URL-safe input and clear error messages.
Base64 Encoder
Encode text to Base64 with Unicode support, URL-safe alphabet and line-wrap options.
HTML Entity Decoder
Decode named and numeric HTML entities back to plain text without using innerHTML.
HTML Entity Encoder
Escape HTML-sensitive characters into entities so text is safe to embed in markup.
URL Decoder
Decode percent-encoded URLs and query strings, with an option to treat + as a space.
URL Encoder
Percent-encode text or URLs using encodeURIComponent or encodeURI, with a live preview.
Questions about encoding tools
Are the encoding tools free to use?
Yes. All 6 tools in this category are free, need no account and have no usage limits. ToolzKit is funded by keeping the site cheap to run, not by gating features.
Does my data get uploaded anywhere?
Every tool in this category runs its processing in your browser using ordinary JavaScript. Your input is not sent to a server, and it is not written to storage when you leave the page.
Can I use these tools on a phone?
Yes. The layouts adapt to narrow screens, editors stack vertically instead of side by side, and copy buttons stay reachable without horizontal scrolling.
How do I find a tool quickly?
Press the forward slash key, or Ctrl+K on Windows and Cmd+K on macOS, to open the command palette from any page. Type a few letters and press Enter.
Related categories
- DeveloperFormat, validate and inspect code and data
- SecurityHashes, tokens and strong passwords
- Web & URLTake apart and build up web addresses
Or see every tool across all 12 categories.