Analyze
Invisible Character Detector
Find eight kinds of invisible characters in your text, with Unicode codes, exact positions and a highlighted view. Runs in your browser.
AvailableOpen tool →
Free tools
Explore the tools. No account needed.
Rewrite a draft, inspect or clean Unicode, compare texts, tidy Markdown and count words. Six tools are ready to use without an account. Cards marked Demo show a fixed sample and its result, not a live text input.
Analyze
Text Diff Checker
Compare two texts with whitespace preserved. Inspect added, removed and modified blocks side by side, locally in your browser.
AvailableOpen tool →
Analyze
Word & Character Counter
Count words, Unicode characters and sentences as you type, with a clearly labelled token estimate. No account or upload needed.
AvailableOpen tool →
Analyze
AI detector score
Explore a sample score from 0 to 100 and the phrases behind it. It describes register, not authorship.
DemoOpen example →
What these tools do not do
They do not promise detector evasion, and they do not rewrite an argument. The score describes how machine-like text reads against our published taxonomy, nothing more.Which models watermark the text they generate is a separate question, with a different answer for each provider. See the watermark database.
What the engine is, what it keeps and for how long are questions about the product rather than about one tool. Read the general FAQ.
Frequently asked questions
Which tools can I use on my own text?
The six tools marked Available accept your own text: AI Text Rewriter, Invisible Character Detector, Unicode Cleaner, Text Diff Checker, Markdown Cleaner and Word & Character Counter. The four entries marked Demo show published samples, not processing of your input.
Which tools process text in my browser?
The five browser-only tools inspect, clean, compare or count text locally, without uploading or storing your input. AI Text Rewriter is different: it sends a submitted draft to the server and uses the same rewriting service and workspace as Rewrite.
Do I need an account or JavaScript?
The five local tools need JavaScript, but no account. The rewriter offers a limited anonymous trial; signed-in runs use your available word balance. Its form also supports submission without JavaScript through Rewrite. Browsing these links does not transfer text from a local tool to another tool or the editor.
Ready to work on your own draft?
Try the editor without signing in. See every suggested change and choose what to keep. Saving documents and revision history requires an account.