toolcompass.

Find your next AI tool

Search by product name or task. Press Escape to close.

Alternatives

10 best Plagiarism Detector alternatives

Tools that cover the same task as Plagiarism Detector (assistant), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.

Plagiarism Detector starts at
$9.99/mo
Free plan
Free to start
API
API available
  1. 01

    Dechecker AI

    Dechecker AI is a writing integrity suite with AI detection, humanizing, grammar, plagiarism, and related tools for GPT-class models. Credit-based plans cover checker words, humanizer words, batch scans, and exports for students and professionals.

    • From $3/mo
    • Free plan
    • API unknown

    Best for: Students, educators, and writers who need AI scores, rewrites, and document checks in one workspace.

  2. 02

    Detecting-AI.com

    Detecting-AI.com is a free web AI detector with sentence-level highlights for ChatGPT, Claude, and Gemini outputs. Paid Monthly and Yearly plans raise scan limits and add unlimited humanizer, fact checker, and plagiarism credits.

    • From $7/mo
    • Free plan
    • API available

    Best for: Educators, editors, and researchers who need fast AI scores with optional paid deep scans and rewriting tools.

  3. 03

    AIDetector Pro

    AI Detector Pro (AIDP) detects and humanizes AI-written text across English, Spanish, French, Arabic, German, Korean, and Portuguese. It combines scanning, editing, tone analysis, and plugins for Word and Google Docs to help writers reduce detectable AI patterns.

    • From $13.99/mo
    • Free plan
    • API available

    Best for: Writers, educators, and marketers who need multilingual AI detection plus in-editor humanization workflows.

  4. 04

    PerfectEssayWriter

    PerfectEssayWriter.ai is a suite of more than 30 AI writing and academic tools spanning essay drafting, grammar, paraphrasing, grading, plagiarism checks, and citations. Students start on a permanent free account and upgrade for higher monthly word and checker limits across Standard, Pro, and Premium plans.

    • From $11.99/mo
    • Free plan
    • API unknown

    Best for: Students and academic writers who need bundled essay, grammar, detector, and citation tools in one subscription.

  5. 05

    MyDetector

    MyDetector is a free online AI detector that scores text from ChatGPT, Gemini, Claude, and similar models with sentence-level highlights. The site supports pasted text and uploads such as PDF, Word, and PowerPoint, and pairs detection with humanization and related checker tools through a quota-based account system.

    • From $6.99/mo
    • Free plan
    • API unknown

    Best for: Writers, educators, marketers, and reviewers who need to scan drafts or uploaded documents for AI-generated patterns before publishing or grading.

  6. 06

    Uncheck AI

    Uncheck AI combines an AI detector with a humanizer that rewrites text to read more naturally and pass common AI detection checks. Free and paid word limits cover students, creators, and marketers iterating on AI-assisted drafts.

    • From $12.99/mo
    • Free plan
    • API available

    Best for: Writers who need to scan AI-generated copy and humanize it before publishing or submitting work.

  7. 07

    elmah.io

    elmah.io is a cloud error logging and uptime monitoring service for .NET applications. It ingests logs from popular .NET logging frameworks, surfaces dashboards and notifications, and adds AI-assisted debugging with Bugster plus an MCP server to bring error context into tools like Cursor and Claude.

    • From $26/mo
    • Free trial
    • API available

    Best for: .NET teams that need centralized error monitoring, uptime checks, and AI-assisted triage across multiple web applications.

  8. 08

    Monday.com

    monday.com is an AI work platform for coordinating people and agents across projects, docs, and automations. Teams use boards, templates, and integrated AI features to run workflows with free and paid seat-based plans published on the pricing page.

    • From $12/mo
    • Free plan
    • API unknown

    Best for: Teams that need a collaborative work OS with AI assistance for projects, docs, and operational tracking.

  9. 09

    Grammar Check

    Grammar Check is a web writing suite with an AI grammar checker plus humanizer, plagiarism checker, paraphraser, summarizer, and online notepad tools. Users paste or upload text, run deep scans across languages, and purchase credit-based plans for higher word volumes.

    • From $4/mo
    • Free plan
    • API available

    Best for: Students, marketers, and professionals polishing drafts who want grammar, paraphrase, plagiarism, and humanizer tools in one browser workspace.

  10. 10

    DeepFiction AI

    DeepFiction is a creative workspace for AI stories, role-play, characters, images, and cinematic video with community galleries. Monthly plans such as Starter, Pro Creator, and Studio bundle allowances for writing and media generation, with optional NSFW access in account settings.

    • From $5/mo
    • Free to start
    • API unknown

    Best for: Fiction writers, role-players, and creators producing mixed text and visual storytelling in one platform.

Plagiarism Detector alternatives: common questions

What is the best free alternative to Plagiarism Detector?

Dechecker AI has an ongoing free plan. Free plan with 80 credits per month and no credit card required Free plans change, so check the vendor before relying on one.

What is the cheapest Plagiarism Detector alternative?

Dechecker AI has the lowest listed starting price at $3/mo, compared with $9.99/mo for Plagiarism Detector.

Which Plagiarism Detector alternatives have an API?

Detecting-AI.com, AIDetector Pro, Uncheck AI, elmah.io, Grammar Check mention API or developer access.