If you paste text into Editpad's AI detector once a week and want a number back, there is very little reason to move. The reasons to look elsewhere are narrow and specific: you need a saved record, a file you can hand to someone, or a published limit you can plan around.
Paste some text or load the example to estimate AI likelihood.
Checked 16 August 2026 at https://www.editpad.org/tool/ai-content-detector, the tool loads and runs. The interface offers Sample, Paste and Upload Doc inputs, a live "Words: 0" counter, and a "Detect AI" button. Output is a percentage split labelled "AI Content" and "Human Content", and the page describes sentence-level marking: "our AI content detector highlights all the AI sentences in red."
The page states "No signup or installation is needed!" and it is honest about its own ceiling, in a caution box printed directly under the result area:
"Caution: Our AI Detector is advanced, but no detection tool is 100% accurate, regardless of their accuracy scores claim. Never rely on AI detection tool alone to make decisions that could affect someone's academic or professional career."
That caution is worth more than most vendor accuracy claims, and it is unusual to see it displayed rather than buried.
Editpad is funded by advertising. The page carries advertisement slots and an adblock notice: "Editpad offers free tools by showing ads to visitors. Support us by disabling your ad blocker and refreshing the page or you can purchase our Premium Plan to enjoy an ad-free experience." That is an observation about the business model, not a criticism of it. Free tools are paid for somehow.
On languages, the page copy says the detector "supports a wide range of languages, including English, French, German, Portuguese, Spanish, and more." Editpad's own interface is offered in English, Spanish, Portuguese and French. There is no published per-language accuracy breakdown.
The footer reads "© 2026 Editpad.org All rights reserved." No operating company, jurisdiction or registered address is named on the detector page.
This is the practical gap, and it is worth being precise rather than dramatic.
The upgrade panel on the detector page lists "3k Words Limit" as one of the Premium benefits, alongside "All Writing Tools", "Advanced AI Generation", "2X Faster Experience", "No Ads" and "Chat & Email Support". Editpad does not publish a free per-check word limit on that page. So you can discover the ceiling only by hitting it.
Editpad's plans page (/tool/plans, checked 16 August 2026) prices an All-in-One bundle at $5.99 weekly, $12.99 monthly, or $125 yearly, which the page shows as $10.42 per month. Allowances are quoted in AI writing words, plagiarism sentences, OCR images and humanizer words. No AI-detector-specific quota is published for any tier. If you need to know in advance how many detector checks you are buying, that number is not on the page.
Genuinely, for a lot of people, it is.
You want one page that does five jobs. Editpad puts the detector next to a paraphrasing tool, plagiarism checker, summariser, OCR and a rewriter. If your actual workflow is "check this, then reword that", tab-switching between specialist tools is worse.
You do not want an account. No email, no password, no confirmation link. For a one-off check on someone else's draft, that matters more than any feature list.
You work in Spanish, Portuguese or French. Editpad's interface is localised into those languages and its copy claims detector support across several European languages. Our own detector is English-only, so on non-English text Editpad is answering a question we cannot answer at all. That is not a close call.
You need it to cost nothing. Ad-supported and free is a real feature. If your alternative to Editpad is "do not check at all", keep using Editpad.
You already trust its caution notice. A tool that tells you on screen not to make career decisions from its output is behaving better than a tool that advertises a precision figure.
If you are a casual user checking your own writing occasionally, stop here. The rest of this page is about a different problem.
A free box gives you a number on a screen. What it does not give you is evidence.
Nothing is stored. Close the tab and the result is gone. If a client disputes a deliverable three weeks later, or a student contests a mark, or a marketplace asks you to substantiate a claim, you have a screenshot and a memory. Screenshots are weak. There is no timestamp anyone else can verify, no record of what text was actually submitted, and no way to show a pattern across ten documents rather than one.
The second gap is repeatability. If you check the same 40 pieces every month, a box with an undisclosed limit and no history means starting from zero each time.
The third is scale. Pasting is fine for one draft and terrible for a folder of forty.
Facts below are from each vendor's own live pages, checked 16 August 2026. Where a figure is not published, the cell says so rather than guessing.
| Tool | Cost | Signup | Published input limit | Languages claimed | Saved record |
|---|---|---|---|---|---|
| Editpad AI Content Detector | Free, ad-supported; Premium from $5.99/week | Not required | Free limit not published; "3k Words Limit" listed as a Premium benefit | English, French, German, Portuguese, Spanish "and more" | None |
| NeuralWriter AI Content Detector | Free | Not required | 10,000 characters per check, minimum 20 | "30+ languages" | None |
| PlagiarismDetector.net AI Detector | Free box; paid add-on from $10/month | Not required | 2,000 words free; "Check upto 5,000 Words" on Pro | "Multiple languages supported" | Account-based on paid plans |
| WriterBuddy AI Content Detector | Free; 2,000 credits monthly with an account | Not required for the free box | Not published | English only, per their FAQ | Account-based |
| TextSight | Free box; paid plans below | Not required for 3 checks/day | 1,000 words anonymous; 5,000 words signed in; minimum 25 words | English only | Yes, from a free account |
NeuralWriter's page states it routes your text through five third-party engines at once. If confidentiality of the text matters to you, read that page before pasting client work into it.
The paste box at the top of this page is ours. Anonymous, it allows 3 checks per day, pooled across the AI Detector and the Document Detector, capped at 1,000 words per check. Minimum input is 25 words. Results are banded: under 30 reads as "likely human-written", 30 to 69 as "mixed signals", 70 and above as "likely AI-generated".
Create a free account and that becomes 60 checks per day at 5,000 words, and every signed-in scan is saved to Scan History. That is the single functional difference from a free box: a week later, the check still exists. Scan History is not a paid feature. Free accounts get it.
Paid plans add the things a free box structurally cannot do. Starter at $9.99 monthly or $7.49 on annual billing adds sentence-level analysis and PDF export, and raises the allowance to 200 checks per day. Pro at $19.99 or $14.99 annual adds unlimited checks plus a Chrome extension and a REST API. Business at $39.99 or $29.99 annual adds teams and branded reports. Enterprise is $79.99 or $59.99 annual. Annual billing is 25 percent off across the board. File upload, URL scanning and bulk scanning are available on paid plans.
Our detector is English-only. It is an ensemble of DeBERTa, RoBERTa and ELECTRA, and it carries a known false-positive bias against writers who learned English as a second language. Fluent, carefully edited non-native English can read as more machine-like to these models than messy native prose does. If you are checking Spanish or Portuguese text, or checking English written by ESL authors and treating the score as a verdict, we are the wrong tool and Editpad's caution notice applies to us just as much as to them.
Occasional personal checks, no record needed: keep Editpad. Non-English text: keep Editpad. You need the check to still exist tomorrow, or a PDF someone else can read: that is what a saved-history tool is for.
https://www.editpad.org/tool/ai-content-detector, checked 16 August 2026. Tool interface, caution notice, language claim, adblock notice, Premium benefits panel, footer.https://www.editpad.org/tool/plans, checked 16 August 2026. All-in-One pricing at $5.99 weekly, $12.99 monthly, $125 yearly.https://neuralwriter.com/content-detector-tool/, checked 16 August 2026. 10,000 character limit, 20 character minimum, "30+ languages", five-engine routing.https://plagiarismdetector.net/ai-content-detector, and pricing at https://plagiarismdetector.net/pricing, checked 16 August 2026.https://writerbuddy.ai/ai-content-detector, checked 16 August 2026. English-only statement, free credits.The deeper head-to-head: feature table, where GPTZero wins, where TextSight wins, and migration steps.
Read the comparePerplexity, burstiness, and transformer scoring explained, so you can read any detector's verdict critically.
Read the guideWhy detectors over-flag ESL and formal writing, and how sentence-level evidence helps you defend real work.
Read the guideThe full ranking with detection approach, pricing, and use-case fit side by side.
See the rankingStart with TextSight's free tier. No card, no signup, no commitment. Your first scan in about six seconds, with the evidence shown line by line.
Honest comparisons vs other tools.