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Best AI Content Detection Software 2026
AI content detection software helps you check text for signs of AI generation and compare tools before choosing a workflow. This page is for buyers who need to weigh access, pricing and capabilities across web, API and app options.
The list uses a changing order rather than a fixed rank. Compare the maker-published fields: free plan, paid-from price, supported languages, file uploads, API access, browser extension, report exports and batch scanning.
02
AI Detector Pro
Detects AI signs in documents and suggests English wording changes, with support for seven listed languages.
AndroidWebWindows+2 Record6.0 Visit
03
TrustOriginality.ai
Analyzes media for AI generation or alteration and can create signed PDF reports with verification links.
AndroidiPhone & iPadWeb+3 Record5.7 Visit
04
Trinka
Writing checker with browser and desktop apps, style suggestions and tone detection.
WebWindowsMac+3 Record5.6 Visit
05
Compilatio AI Detector
Compilatio estimates AI-generated text and highlights passages in more than 35 languages.
WebAPI Record5.5 Visit
6
Copyleaks AI Detector
WebBrowser extensionAPI+1 Free plan Record5.5 Visit Copyleaks identifies AI-written passages, explains flagged text, and notes wording found in published content elsewhere.
7
GPTZero
WebBrowser extensionAPI $8.33 a month, billed yearly Record5.5 Visit Identifies AI-written text with document, sentence and word highlights, confidence scores and explanations.
8
Originality.ai
WebBrowser extensionAPI $12.95 a month, billed yearly Record5.5 Visit It suits website owners, content marketers, writers, and publishers who need to review text or scan site content.
10
Undetectable AI
WebBrowser extensionAPI $60 a year Record5.5 Visit Undetectable AI checks text for signs of AI generation and returns results without signup.
11
Winston AI
WebBrowser extensionAPI+1 $189 a month, billed yearly Record5.5 Visit Checks writing and images for AI generation and includes plagiarism review tools.
12
AI or Not
iPhone & iPadWebBrowser extension+2 $100 a month Record5.4 Visit It may suit individuals who want AI checks across several media types, or developers adding detection to their workflows.
13
Corrector.app
AndroidiPhone & iPadWeb+2 Free plan Record5.4 Visit Corrector.app may suit students and professionals who want spelling, grammar, punctuation, or word-choice suggestions without creating an account.
14
Polygraf AI Detector
WebBrowser extensionAPI $9.95 a month Record5.3 Visit The detector may suit people or organizations who want signals about AI-generated content and supporting evidence.
15
Proofademic
WebAPI $15 a month Record5.3 Visit Proofademic reviews submitted writing for AI use and plagiarism, with an overall score and sentence-by-sentence breakdown.
16
SlopTotal
WebWindowsMac+4 Free plan Record5.3 Visit SlopTotal analyzes pasted writing or a public URL with 23 detection engines and returns a score with engine votes.
17
Ahrefs
WebAPI $29 a month Record5.2 Visit Web and API platform that includes keyword research and other search-focused tools.
18
Hive AI-Generated Content Detection
WebBrowser extensionAPI+1 $6 one-time Record5.2 Visit APIs check media, writing and audio for AI generation, returning confidence scores and segment results.
19
Pangram
WebBrowser extensionAPI $20 a month, billed yearly Record5.2 Visit Pangram analyzes writing and pictures for AI use and offers plagiarism checks on the web, in an extension, or through an API.
20
Resemble Detect
WebBrowser extensionAPI+1 $350 a month, billed yearly Record5.2 Visit Returns a verdict and explanation on whether media was AI-made or altered.
21
ScribeLens
WebBrowser extensionAPI $9 a month Record5.2 Visit Analyzes writing sentence by sentence for AI-like patterns and exports evidence reports from text or common files.
22
AI Detect
WindowsMacLinux+1 Free plan Record5.1 Visit Open-source local tool that scores sentences for likely AI writing and explains flagged language patterns.
23
Detecting-AI.com
WebAPI $84 a year Record5.1 Visit Scores pasted or uploaded documents for AI writing, highlighting AI-like passages while preserving structure.
Before you choose
Start with free access
Check whether a tool has a free plan or a free trial before paying. Free plans are listed for Humbot, TrustOriginality.ai, AI Detector Pro, AI or Not, Corrector.app, AI Detect, Originality.ai, Resemble Detect and ScribeLens.
Use the paid-from figure as a starting point, not a complete quote. Listed examples include $7.99 per month for Humbot on annual billing, $4.99 per month for TrustOriginality.ai and $5 per month for AI or Not.
Match the platform to your workflow
Web access is common in this category. API, browser extension, self-hosted, Windows and iOS options also appear, so choose the access method that fits your work.
If you need software that runs on your own systems, look for self-hosted support. If you work inside a browser, check for an extension.
Check files and reports
Compare supported languages and file uploads before selecting a tool. These fields show whether a service fits the content you need to review.
Report exports can matter when you need to save or share results. Batch scanning can help when a workflow handles multiple files.
Review API access
An API can connect detection to another product or process. Check API access when you need programmatic requests instead of a browser-only workflow.
Confirm the listed platform and export options together so the tool fits how results move through your process.
Consider licensing
Open-source options appear on the list alongside free and paid services. If you need to read or change code, check the tool's licence before adopting it.
A free plan describes access, not permission to modify or redistribute software.
Questions
Which AI content detection tools have a free plan?
The list marks free plans for tools including Humbot, TrustOriginality.ai, AI Detector Pro, AI or Not, Corrector.app, AI Detect, Originality.ai, Resemble Detect and ScribeLens.
Can I use these tools through an API?
API access is a comparison field, and API-based options appear on the list. Check the individual entry for its stated access and pricing.
Are browser extensions available?
Browser extension support is included as a comparison field. Check an entry for extension availability alongside its web or API options.
Do these tools support file uploads and exports?
File uploads and report exports are listed comparison fields. Check the tool's entry for the supported workflow.
Are open-source options included?
Open-source tools appear on the list. If code access or modification matters, review the licence for the tool you are considering.
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