Everything is free
Other detectors put a paywall in front of the useful settings: longer documents, batch checks, a report you can hand in, the good summariser. On ZeroGPT.ph there is no paid tier at all, and no account to make. That is possible because the analysis runs on your own processor inside the browser, so a heavy user costs no more to serve than a light one. The list below is what you get, and it is the whole list — nothing further unlocks later.
No ads, anywhere
No banners, no interstitials, no sponsored 'recommended tool' blocks. The page you land on is the tool.
150,000 characters per detection
Roughly a 25,000-word document in a single pass — a full dissertation chapter rather than an abstract.
Batch check up to 75 files
Select a folder's worth of .txt or .md files at once. You get a sortable table of every file with its own score, plus the average across the set.
Downloadable PDF report
One click turns any result — single text or whole batch — into a printable report with the score, the metrics and the highlighted sentences. Useful when someone else has to see the evidence.
Plagiarism checking with no monthly cap
Compare two documents as often as you like. There is no word budget that resets on the first of the month.
Summariser with Thinking mode
The standard pass ranks sentences once. Thinking mode ranks them, keeps the strongest half, re-scores those against each other, drops near-duplicates and reorders what survives so the summary reads as prose.
Paraphraser with Thinking mode
Generates several rewrites internally and keeps the one that moves furthest from your wording without changing the length.
Six paraphrase modes
Standard, Formal, Simple, Creative, Concise and Academic — switchable as often as you want, on any length of text.
Summarise and paraphrase without word limits
No 10,000-word ceiling on the summariser and no 5,000-word ceiling on the paraphraser. The limit is your device's patience.
Grammar and spell check, any length
Twenty-eight rules covering the mistakes that survive a quick read, applied to a paragraph or a whole manuscript.
Translator that handles long text
Long input is split into chunks and translated piece by piece, so a full article works rather than only the first few lines.
Unlimited ZeroChat prompts
No prompt counter, because there is no per-message cost to pass on.
AI humanizer
Rewrites the tells that give a language model away, then re-scores the result so you can see the before and after.
Your text never leaves the device
Detection, humanising, summarising, counting and background removal all run in the browser. Nothing is uploaded and nothing is stored.