Alternatives · AI Detection

Originality.ai alternatives

The closest alternatives to Originality.ai are Grammarly, GPTZero and QuillBot, which also cover checking grammar and spelling and checking for plagiarism. 10 of the 15 listed here can be used for free, including Grammarly and GPTZero. The lowest paid plan starts at $1.99 per month (Hostinger Website Builder).

Alternatives
15
Free options
10
Updated
Nov 2026

Closest first: ordered by how many of Originality.ai's tasks each tool shares, then by popularity.

  1. 1

    GrammarlyVerifiedFree tier · from $12/mo

    An AI writing assistant that checks grammar, tone, and clarity for individuals, teams, and organizations.

    Also does:Checking grammar and spellingChecking for plagiarism

    Web · Windows · Mac · Android · iOS

  2. 2

    GPTZeroVerifiedFree tier

    AI-writing detector for teachers, students, and editors who need to check text and writing process.

    Also does:Checking for plagiarismChecking grammar and spelling

    Web · Browser extension

  3. 3

    QuillBotFree tier

    Paraphrasing and writing tool that rewrites text in several modes with grammar checking built in.

    Also does:Checking grammar and spelling

    Web · Browser extension

  4. 4

    SurferVerifiedPaid · from $49/mo

    SEO and AI search visibility platform for teams that want their content cited in Google and in AI answers.

    Also does:Improving SEOChecking for plagiarism

    API

  5. 5

    JasperVerifiedFree trial · from $59/mo

    An AI marketing platform for teams that need on-brand content and repeatable campaign workflows.

    Also does:Improving SEO

    Web · API · Browser extension

  6. 6

    WordtuneVerifiedFree tier · from $4.89/mo

    AI writing assistant for students and professionals to rewrite, proofread, summarize, and translate into English.

    Also does:Checking grammar and spelling

    Browser extension

  7. 7

    DurableVerifiedFree tier · from $25/mo

    AI business builder for small businesses to create a website, sell products or services, and manage leads.

    Also does:Improving SEO

    Web

  8. 8

    HubSpotVerifiedFree tier · from $7/mo

    A connected CRM and marketing, sales, and service platform for growing businesses.

    Also does:Improving SEO

    Web · iOS · Android

  9. 9

    AnywordVerifiedFree trial · from $49/mo

    AI content platform that scores marketing copy before your team publishes it.

    Also does:Checking for plagiarism

    Web · API · Browser extension

  10. 10

    Hemingway EditorFree tier

    Readability editor that highlights hard-to-read sentences, passive voice and adverbs in your writing.

    Also does:Checking grammar and spelling

    Web · Mac · Windows

  11. 11

    SemrushFree trial · from $139/mo

    All-in-one SEO and marketing platform covering keyword research, competitor analysis, content and social media.

    Also does:Improving SEO

    Web · Browser extension

  12. 12

    SuperhumanVerifiedFree tier · from $12/mo

    AI assistant and work suite for individuals and teams, with agents in tabs, email, and docs.

    Also does:Checking grammar and spelling

    Web · Browser extension

  13. 13

    Base44VerifiedFree tier · from $16/mo

    Build apps, websites and AI agents by describing them in plain language, with no coding required.

    Also does:Improving SEO

    Web

  14. 14

    Hostinger Website BuilderVerifiedPaid · from $1.99/mo

    A drag-and-drop website builder from Hostinger with built-in AI tools for small businesses and creators.

    Also does:Improving SEO

    Web

  15. 15

    FraseVerifiedFree trial · from $39/mo

    Content platform that helps marketing teams rank on Google and get cited by AI assistants.

    Also does:Improving SEO

    Web · API

At a glance

ToolPricingFreePlatformsAPIChecked
Originality.aiFree tier · from $12.95/moYesWeb, Browser extensionYesNov 4, 2026
GrammarlyFree tier · from $12/moYesWeb, Windows, Mac, Android, iOSNoNov 3, 2026
GPTZeroFree tierYesWeb, Browser extensionYesNov 4, 2026
QuillBotFree tierYesWeb, Browser extensionNo—
SurferPaid · from $49/moNoAPIYesNov 4, 2026
JasperFree trial · from $59/moNoWeb, API, Browser extensionYesNov 4, 2026
WordtuneFree tier · from $4.89/moYesBrowser extensionNoNov 4, 2026
DurableFree tier · from $25/moYesWebNoNov 4, 2026
HubSpotFree tier · from $7/moYesWeb, iOS, AndroidYesNov 4, 2026
AnywordFree trial · from $49/moNoWeb, API, Browser extensionYesNov 4, 2026
Hemingway EditorFree tierYesWeb, Mac, WindowsNo—
SemrushFree trial · from $139/moYesWeb, Browser extensionYes—
SuperhumanFree tier · from $12/moYesWeb, Browser extensionNoNov 4, 2026
Base44Free tier · from $16/moYesWebYesNov 4, 2026
Hostinger Website BuilderPaid · from $1.99/moNoWebNoNov 4, 2026
FraseFree trial · from $39/moNoWeb, APIYesNov 4, 2026

Common questions

What is the best alternative to Originality.ai?
Grammarly is the closest match: it also covers checking grammar and spelling and checking for plagiarism. GPTZero and QuillBot come next. Alternatives are ordered by how many of Originality.ai's tasks they share, then by how popular they are.
Is there a free alternative to Originality.ai?
Yes. Grammarly, GPTZero and QuillBot can be used for free. Grammarly has a free plan, and paid plans start at $12 per month.
What is the cheapest alternative to Originality.ai?
Among paid plans, Hostinger Website Builder starts lowest at $1.99 per month, against $12.95 for Originality.ai.
Which Originality.ai alternatives have a mobile app?
Grammarly and HubSpot have an iPhone or Android app.