There is no cap on how much text you put through here in total, and no cap on how many runs you make across days, weeks or documents. What is fixed is the size of one run: the humanizer rewrites up to 12,000 characters at a time, roughly 2,000 words, so anything longer goes through as a sequence of runs. Nothing counts the runs. The free tier is 10 credits a day per network, with no account, no login, no card and no email to verify, and it refills daily. Rewriting costs 1 credit per 50 words, checking costs 1 credit per run whatever the length, and six more tools run in your browser with no limit at all. The rest of this page is how to put a long document through without the seams showing.
One number is fixed, and it is the size of a single run. The humanizer takes 12,000 characters, about 2,000 words of ordinary prose, and rewrites every sentence in one click. The rest of what people mean by a word limit is not capped. Not the runs, not the documents, not the total words you push through this week or this year.
What paces a long job is credits, and credits are a daily allowance rather than a lifetime one. Ten a day, counted per network, back to ten tomorrow. Rewriting costs 1 credit per 50 words, so ten credits is 500 words of rewriting. Checking costs 1 credit per run whatever is in it, which is the reason to check first: one credit tells you whether a 2,000-word block needs the other nine.
The ceiling counts characters, which is why two blocks of the same word count do not always both fit. Ordinary prose runs close to six characters a word once you count the spaces, which is where the rough figure of 2,000 words comes from. Writing thick with technical terms, hyphenated compounds, author surnames and inline citations takes more characters per word, so a dense block reaches the ceiling before it reaches 2,000 words.
So size your blocks by characters rather than by a round word count. The word counter gives you both figures free with no daily limit, and the box on this page counts as you paste and tells you exactly how many characters you are over, so you can trim to a clean break before running anything. A block of 1,400 to 1,800 words is the comfortable target, clear of the ceiling even when a passage is dense.
Split at the breaks the document already has. A report has headed sections, a thesis has chapters, an argument turns at one specific paragraph. Those breaks give you blocks that each hold a complete thought, which is what you want, because a run works on the block in front of it. A 6,000-word chapter is three or four blocks, a 20,000-word manuscript is a dozen or so. Cut at arbitrary word counts instead and you spend the evening repairing paragraphs that were split down the middle.
Set aside anything that has to survive word for word: block quotations, reference lists, tables, equations, code samples, contract wording, interview quotes. A rewrite changes wording by design, so text that has to stay verbatim belongs outside the box, and it saves you the credits at the same time.
Then get the order right. Check first, rewrite second. Checks are flat priced at 1 credit whatever the length, so ten checks cost ten credits and tell you which two or three blocks read as AI-generated and which of them already read as human-written. The arithmetic decides the rest: 20,000 words rewritten end to end is 400 credits, while the 1,500 words that actually read as assembled cost 30. Long documents are almost never uniform, and that is what the plan runs on.
Because each run works on one block, the through-line is yours to hold, and it takes about two minutes to set up. Before you start, write down what the document depends on: your spellings, the abbreviations you expanded on first use, the phrase you use for the central concept, the names of people and systems. Skim each output against that list, then read the joins. The last sentence of one block and the first sentence of the next are where seams show, usually as a pronoun whose subject sits in the other block, or a transition that no longer matches. Both are quick to fix by hand, and both matter more to a reader than any score.
The diagnostic side of this site has no daily limit and costs no credits, because it runs in your browser. The AI vocabulary checker highlights the machine-draft words where they occur in your text and offers a replacement for each one, and the registry behind it explains every pattern one at a time. The readability checker shows where every sentence is landing at the same length. The originality check compares your text against the open web.
That matters more on a long document than on a short one. Every stock opener and stacked hedge you cut yourself shrinks the block you were going to spend credits rewriting.
If your concern is showing the document is yours rather than changing how it reads, the drafting record keeps a signed, timestamped history as you write, using ECDSA P-256, and a third party can verify it without contacting us. On a project written over weeks, that is a record of your process, which a score never is.
One pass through, for a document of any length.
There is no limit on the total words you put through, the number of runs, or the number of documents. The rewriter has a per-run ceiling of 12,000 characters, roughly 2,000 words, and a longer document goes through as consecutive runs. Nothing counts how many of those you do.
Five hundred. The allowance is 10 credits a day per network and the rewrite costs 1 credit per 50 words. It refills daily, so a long document either runs across several days, or you use the checks to find the part that needs rewriting and leave the rest.
It needs at least 65 words and costs 1 credit per run whatever the length, so a 2,000-word block and a 70-word paragraph cost the same. That flat price makes checking the right first move on a long document. You get a 0 to 100 score and one of three readings: reads as AI-generated, borderline, or reads as human-written.
Ten checks a day on the free allowance, which covers roughly 15,000 to 18,000 words of blocks. A longer manuscript spreads over two days, and the allowance is back to ten the next morning. There is nothing to buy to continue and nothing to sign up for.
There is no trial and no expiry. The 10 credits are a daily allowance that refills, and the browser tools have no allowance at all. Nothing requires an account, so there is nothing to track between visits.
Twenty-five words. On a long document that only comes up for a standalone element like a short abstract or a caption. The checker needs 65 words, so a short element is better checked inside the section around it.
Rewriting a draft you were permitted to generate is ordinary editing. Where AI is not permitted in submitted work, that rule covers the draft however it is edited. Read the policy that applies to your course.