Turnitin Alternatives 2026: 5 Free Options
Turnitin alternatives: Quetext, Sapling, Grammarly, ProWritingAid and 1 more. Prices and licenses checked October 25, 2026.
•3 min read•Learning & Everyday Apps
Verdict:Turnitin is licensed to institutions, not individuals. Its help centre says it does not sell Feedback Studio or Similarity subscriptions to individuals, and it points them to iThenticate with credit-based pricing, so there is no public price to beat. That makes this page mostly about students and independent writers who want to check their own work before handing it in, plus small organisations that have no institutional licence. Quetext is the most direct free option: 1,000 words at $0 for plagiarism and AI detection, then $14.99 a month for 100,000 words. Sapling covers AI-text detection only, free for the first 2,000 characters per check. Grammarly and ProWritingAid are editing tools where plagiarism is a paid extra; ProWritingAid sells plagiarism checks separately on every plan. Copyleaks offers both checks and is the closest to Turnitin's scope, so check its pricing page. The trade-off is that none of these will reproduce your school's Turnitin score, because each tool compares against its own sources. Use them to find uncited passages and obvious AI phrasing, not to predict a grade. If your instructor uses Turnitin, ask whether a draft check is available.
Quick comparison
| Tool | Price | Platforms | Best for | Tested |
|---|---|---|---|---|
| Quetext | Free (Free plan at $0 per month: 1,000 words for the plagiarism checker and AI detector, 2,000 for the AI summarizer, 500 for the AI humanizer); paid from $14.99 per month (Essential, 100,000 words a month; monthly and yearly options shown, no annual price listed) | Web | Free pre-submission check | Docs only |
| Sapling | Free (basic writing assistance and AI detector checks up to 2,000 characters per check); paid from $12 per month, billed annually ($25 billed monthly, Pro) | Web, Browser extension | Quick AI-writing check | Docs only |
| Grammarly | Free (Free plan with spelling and grammar help, tone suggestions and 100 AI prompts); paid from $12 per month (Pro; check the pricing page for the billing term) | Web, Browser extension, Desktop app, Mobile app | Writing help plus plagiarism flags | Docs only |
| ProWritingAid | Free (suggestions for up to 500 words at a time with a few AI runs a day); paid from $10 per month, billed yearly ($120 a year; $30 billed monthly; lifetime $399) | Web, Browser extension | Editing tool with paid plagiarism add-on | Docs only |
| Copyleaks | Free (Free trial plan of about 10 pages (roughly 2,500 words) a month) | Web | Plagiarism and AI detection together | Docs only |
| GPTZero | Free | Web | AI detector | Docs only |
| Originality.ai | Free (Free tier for limited use; the page shows inconsistent credit figures (100 credits one time, or 3 scans a day)); paid from $12.95 per month, billed yearly (Pro, 2,000 credits a month; $14.95 billed monthly) | Web browser | AI Content Detection | Docs only |
Independent comparison. Paid placements are labelled separately; editorial links earn no affiliate commissions. Learn more.
Good fit if
- You want a free similarity check before submitting (Quetext is the pick)
- You only need to see how AI-like your text reads (Sapling is the pick)
- You want grammar fixes and citation flags together (Grammarly is the pick)
- You already edit in ProWritingAid and only need occasional plagiarism checks (ProWritingAid is the pick)
- You need plagiarism and AI detection in one tool (Copyleaks is the pick)
Not ideal if
- You rely on Turnitin features or integrations that these tools do not replicate
Turnitin today: See pricing page (Turnitin pricing, checked 2026-10-22).
Why people look for Turnitin alternatives
Turnitin does not sell Feedback Studio or Similarity subscriptions to individuals. Access comes through an institution, which means students, freelancers and writers cannot buy a check on their own. Individuals are pointed to iThenticate, which uses credit-based pricing instead of a monthly plan. The company publishes no price list for institutional licences, so schools negotiate access directly.
Quetext
Compared with Turnitin: Free plan checks 1,000 words for plagiarism and AI detection at $0; Essential is $14.99 a month. You lose Turnitin's school-run workflow, and a score here will not match what your institution sees.
Price: Free (Free plan at $0 per month: 1,000 words for the plagiarism checker and AI detector, 2,000 for the AI summarizer, 500 for the AI humanizer); paid from $14.99 per month (Essential, 100,000 words a month; monthly and yearly options shown, no annual price listed) (Quetext pricing, checked 2026-10-22).
Platforms and license: Web. Proprietary.
Best for: Free pre-submission check.
Sapling
Compared with Turnitin: Free AI-content detector for up to 2,000 characters per check, with Pro at $12 a month billed annually. It detects AI-written text only; its page does not mention plagiarism, which Turnitin also covers.
Price: Free (basic writing assistance and AI detector checks up to 2,000 characters per check); paid from $12 per month, billed annually ($25 billed monthly, Pro) (Sapling pricing, checked 2026-10-22).
Platforms and license: Web, Browser extension. Proprietary.
Best for: Quick AI-writing check.
Grammarly
Compared with Turnitin: Free plan with spelling and grammar help; its page describes a Premium plagiarism check that flags passages needing citations. You gain writing feedback and lose Turnitin's institution reports.
Price: Free (Free plan with spelling and grammar help, tone suggestions and 100 AI prompts); paid from $12 per month (Pro; check the pricing page for the billing term) (Grammarly pricing, checked 2026-10-22).
Platforms and license: Web, Browser extension, Desktop app, Mobile app. Proprietary.
Best for: Writing help plus plagiarism flags.
ProWritingAid
Compared with Turnitin: Free plan with up to 500 words at a time, but plagiarism checks cost extra on every plan according to its pricing page. A grammar tool first, a similarity checker only as an add-on.
Price: Free (suggestions for up to 500 words at a time with a few AI runs a day); paid from $10 per month, billed yearly ($120 a year; $30 billed monthly; lifetime $399) (ProWritingAid pricing, checked 2026-10-22).
Platforms and license: Web, Browser extension. Proprietary.
Best for: Editing tool with paid plagiarism add-on.
Copyleaks
Compared with Turnitin: Free trial plan reported at about 10 pages a month (vendor page blocked our fetch). Offers both plagiarism and AI detection like Turnitin, but you lose the institution integrations.
Price: Free (Free trial plan of about 10 pages (roughly 2,500 words) a month) (Copyleaks pricing, checked 2026-10-22).
Platforms and license: Web. Proprietary.
Best for: Plagiarism and AI detection together.
Other popular options (paid)
GPTZero
Compared with Turnitin: Free plan exists according to third-party trackers, while its pricing page showed only a team plan. Focused on spotting AI-written text rather than matching text against a source database like Turnitin.
Price: Free (GPTZero pricing, checked 2026-10-23).
Originality.ai
Compared with Turnitin: Free tier for limited use, and Pro is $12.95 a month billed yearly for 2,000 credits, where 100 words is 1 credit. Checks both AI writing and plagiarism, sold directly to individuals.
Price: Free (Free tier for limited use; the page shows inconsistent credit figures (100 credits one time, or 3 scans a day)); paid from $12.95 per month, billed yearly (Pro, 2,000 credits a month; $14.95 billed monthly) (Originality.ai pricing, checked 2026-10-25).
Which one to pick
- You want a free similarity check before submitting: Quetext
- You only need to see how AI-like your text reads: Sapling
- You want grammar fixes and citation flags together: Grammarly
- You already edit in ProWritingAid and only need occasional plagiarism checks: ProWritingAid
- You need plagiarism and AI detection in one tool: Copyleaks
Limits of this review
Docs-only for Quetext, Sapling, Grammarly, ProWritingAid, Copyleaks: we did not install or run them, so feature claims come from vendor pages and we did not test import from Turnitin. Vendor prices and free limits change; confirm on the linked pricing page before you buy or migrate.
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Kevin Fan
Kevin Fan is a SaaS founder. He runs Free Instead Of, which tracks free and open-source alternatives to paid software and checks each price and free-plan limit against the vendor's own pages.
Methodology
Based on official pricing and product pages checked between 2026-10-22 and 2026-10-25: Turnitin, Quetext, Sapling, Grammarly, ProWritingAid, Copyleaks, GPTZero, Originality.ai. Prices, free limits and licenses are the figures shown on those pages on those dates. No tool on this page was installed or run. No accounts were created.