Text

Character Counter shows characters, characters excluding spaces, words, lines, and paragraphs at once. For languages that do not separate words with spaces, such as Japanese, the character count is the meaningful figure; for English it counts whitespace-separated tokens as words. Useful for submissions with a strict limit or for drafting a post.

To see what changed between two texts, use Text Diff. It computes a line-level difference using the longest common subsequence algorithm and colour-codes added and removed lines — good for comparing two versions of a config file, checking a contract before and after revision, or lining up two snippets of code.

JSON Formatter expands JSON that has been squashed onto one line into properly indented output, and can minify it back the other way. When the syntax is broken it reports the error together with the line and column where it occurred, so you can find the problem immediately — handy for reading an API response or hunting a typo in a config file.

For rule-based bulk edits, use Regex Replace. It supports the g, i, m, and s flags, highlights matches as you type, shows the match count, and previews the replacement result so you can confirm nothing unintended was caught before you use it.

Text Transform handles inconsistent notation: upper and lower case, title case, conversion to camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE, full-width to half-width and back, unifying line endings (CRLF / LF / CR), and trimming or collapsing whitespace.

For list-shaped data, Line Tools does the heavy lifting: remove duplicates, sort ascending, descending, or randomly, drop empty lines, trim each line, add a prefix or suffix to every line, and add or strip line numbers. Deduplicating a list of email addresses, or wrapping a pasted list in quotes to make an array, becomes a couple of clicks.

Text Editor is a plain scratch space for a quick draft or somewhere to park pasted text. Drop a file in to open it, edit, and save the result back out as a text file, with a live character count alongside.

Base64 Encode / Decode handles both text and binary files. It supports URL-safe output (+ becomes -, / becomes _) and can generate a Data URL so an image can be embedded directly in HTML or CSS. When a decoded result turns out to be an image, it is previewed on the spot so you can confirm the decode worked.

URL Encode / Decode converts percent-encoding in both directions for URLs containing non-Latin characters or symbols. It can also break a query string apart into a key-value list, which makes it easy to see what is buried in a long URL full of tracking parameters.

Worth stating plainly: Base64 is not encryption. It is an encoding anybody can reverse, so it cannot be used to keep anything secret.

Everything here is implemented in JavaScript running in your browser. Diffing, regular expressions, JSON parsing — all of it executes on your device. There is no code path that transmits what you typed, and nothing is logged on a server.

If you want to check, open the Network tab in your developer tools and type or convert something. You will not see a request carrying your input. The results disappear as soon as you close the page.

That is the point of doing it this way: it lets you work on the material you cannot paste into an external service — config containing API keys, an internal customer list, an unpublished draft, a fragment of a CSV with personal data in it.

The text tools hand their output straight to one another. You can deduplicate a pasted list in Line Tools, unify its casing in Text Transform, and finish it in the editor without copying and pasting between steps.

Text files are accepted up to 10 MB each. Highlighting and diff rendering can get heavy on extremely long documents, so working on the section you actually need keeps things responsive.