47 converters, generators and analyzers that run entirely in your browser. No account, no uploads, no tracking — plus 10 in-depth guides and 8 reference tables explaining how any of it works.
Press / to search, or browse every page.
Convert between text, binary, decimal, hexadecimal and octal. Base64, hashing, Morse code, bitwise maths and file sizes.
JSON, CSV, XML, YAML, Markdown and HTML transformations, case conversion, diffing, line tools and URL encoding.
SERP previews, schema markup, meta tags, keyword density, robots.txt, XML sitemaps, hreflang and redirects.
UTM campaign builder, QR codes, link extraction, Open Graph debugging, URL parsing and slug generation.
Colour conversion, CSS gradients, regex testing, timestamps, passwords, UUIDs, JWTs, CSS units and subnetting.
The ones people reach for most. Every tool works the same way: type or paste, get the result instantly, copy or download it.
Most online converters send your input to a server. That is fine for a shopping list and a genuine problem for a JWT, an API response, a customer export or anything else you would not paste into a stranger’s log file.
These tools have no server to send anything to. The site is static files; every tool is JavaScript that executes on your own machine. Three ways to confirm it rather than take our word for it:
The trade-off is real: nothing can be done that genuinely requires a server, such as fetching a remote URL. Where a tool is limited by that, its page says so. More detail on the about page.
Knowing that UTF-8 uses one to four bytes per character is more useful than being able to click a button that converts one. Each guide cites its sources and links to the tools that put the ideas into practice.
Filterable lookup tables generated from data rather than typed by hand, so the values are complete and consistent.
All reference tables → · Glossary of every term used on this site
| If you are… | Start with |
|---|---|
| A developer debugging encoding or data formats | Hex to text, JWT decoder, JSON/CSV/XML/YAML |
| Working on technical SEO | SERP preview, Schema generator, Sitemap generator |
| A student learning computer science | Binary explained, ASCII table, Binary calculator |
| A designer or front-end developer | Colour converter, CSS units, Aspect ratio |
| Working on security | Password generator, Hash generator, Hashing vs encryption |
| Running marketing campaigns | UTM builder, QR codes, Social card debugger |
Yes. Every tool, guide and reference table is free with no account, no trial and no paid tier.
No. Every tool runs as JavaScript inside your browser tab. There is no server-side processing, so nothing you type or upload is transmitted. You can verify this by watching the Network tab in developer tools, or by disconnecting from the internet and continuing to use the page.
Yes, once a page has loaded. Everything needed to run the tool is already in the page, so you can disconnect and keep working.
The site sets no cookies and runs no analytics scripts. Some tools remember preferences in your browser's local storage, which never leaves your device.
47 tools across five categories, plus 8 reference tables and 10 in-depth guides.
Yes. Use them for anything, personal or commercial, with no attribution required. Output you generate is yours.
Use the search box in the header, press / from anywhere on the site, or browse the complete sitemap.
TextToBinary.net is built and maintained by Thibault Besson-Magdelain, a software engineer working on data encoding, web standards and search technology. There is no company behind it and no team — if a tool misbehaves, one person reads the report.
Content is sourced from primary specifications: IETF RFCs, W3C and WHATWG standards, the Unicode Standard, NIST publications and official search engine documentation. Every article lists what it drew on. There are no invented statistics, no fabricated ratings and no review markup claiming any.
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