TeraBox
Browser utilities that stay out of the way.
Format JSON, generate a password, count words, encode Base64, preview Markdown, or make a QR code — in this tab, without creating an account. Tools run in your browser. Guides explain the concepts so you are not guessing at errors.
Tools
View allFormat and validate JSON instantly.
Generate strong passwords with custom options.
Count words, characters, and lines quickly.
Encode text to Base64 or decode Base64 back to text.
Convert text between upper, lower, title, and sentence case.
Generate downloadable QR codes from any text or URL.
Generate placeholder text for prototypes and designs.
Write and preview Markdown formatting in real time.
Encode or decode URLs and parameters safely.
Guides
All guides- How to format and validate JSON
Learn what valid JSON actually requires, the errors that break parsers, and how to pretty-print data without changing its meaning.
- How to create a strong password (and why length beats complexity)
Password strength is mostly about length and randomness. This guide explains generators, passphrases, and what sites actually check.
- Word count vs character count
Platforms, SEO drafts, and school assignments all count text differently. Here is what words, characters, and lines actually mean.
- What Base64 is (and is not encryption)
Base64 turns bytes into ASCII so they survive email, JSON, and URLs. Anyone can decode it. It is not a lock.
- Markdown basics for notes and README files
Headings, lists, links, and fenced code are enough for most notes. This is the small subset that survives GitHub, docs, and editors.
- QR codes: what they encode and when not to scan one
A QR code is just a payload in a square. URLs, Wi-Fi strings, and text all work — so do phishing links. Encode short data, print large enough, and scan with care.
Built for speed and privacy
Widget input stays in your browser. We publish a privacy policy that covers analytics and Google ads, and we keep navigation to tools, guides, about, and contact on every page. This utilities site is not affiliated with the TeraBox cloud-storage product.