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QuillBot

AI App Builder

by Replit, Inc.

AI-powered development platform for building, testing, deploying and hosting apps, websites and software.

Freemium Free plan From $18
Start Building Free Watch demo We may earn a commission if you buy through this link. It never changes our rating.

What is QuillBot?

QuillBot is an AI-powered writing platform designed to help users write, rewrite, edit and improve content more efficiently. It brings together tools such as a Paraphraser, Grammar Checker, Summarizer, Citation Generator, Translator, AI Detector, Plagiarism Checker and AI Humanizer in one platform. Users can use QuillBot to improve sentences, adjust writing style, summarize longer content, check grammar and create citations for academic or professional work.

The platform also includes AI Chat and other creative tools, making it useful beyond traditional paraphrasing. QuillBot offers a free plan with limited access to several features, while Premium provides unlimited paraphrasing, additional writing modes, advanced grammar recommendations and higher usage limits. It is available through the web, browser extensions and mobile apps, making it useful for students, bloggers, writers, marketers, researchers and professionals who regularly work with text.

What users say

Replit is commonly used to build and deploy applications, websites, prototypes and software with AI-assisted development.

Pros and cons

Pros
  • AI-powered app development
  • Natural-language coding
  • Replit Agent
  • Built-in database
  • Built-in authentication
  • Built-in hosting and deployment
  • Real-time collaboration
  • Mobile app development
  • Multiple programming languages
  • Built-in security scanning
  • Git-based version history
  • Easy project publishing
Cons
  • AI usage is credit-based
  • Advanced usage can increase costs
  • Free plan has usage limitations
  • Some enterprise features require Enterprise
  • AI-generated code can still require human review
Our verdict

Replit brings coding, AI-assisted development, databases, authentication, hosting and deployment into one cloud workspace. Its biggest advantage is the ability to move from an idea to a working application using natural-language instructions while still providing access to a real development environment. It can be useful for developers, students, entrepreneurs and teams building websites, prototypes, internal tools and production applications.

Who is QuillBot for?

Developers

Build, test and deploy software using a cloud development environment with AI assistance.

  • AI coding
  • Deployment
  • Highly specialized local development workflows
  • Offline-only development

Plan we would pick: Core

Students

Learn programming and build projects without installing a complete local development environment.

  • Learning
  • Prototyping
  • Large enterprise controls
  • Advanced team administration

Plan we would pick: Starter

Entrepreneurs

Turn product ideas into working prototypes and applications quickly.

  • Prototyping
  • AI app building
  • Large-scale enterprise administration

Plan we would pick: Core

Small Business

Build internal tools, websites and business applications without maintaining complex infrastructure.

  • Internal tools
  • Web apps
  • Enterprise-only controls
  • Large deployments

Plan we would pick: Core

Software Teams

Collaborate on development, testing and deployment in one workspace.

  • Collaboration
  • Development
  • Specialized enterprise infrastructure

Plan we would pick: Pro

Startups

Prototype and launch applications while keeping development and deployment in one platform.

  • MVP development
  • Deployment
  • Large enterprise governance

Plan we would pick: Pro

Industry fit

Software & TechnologyFull development environment with AI, deployment, databases and authentication.
Strong fit
98
StartupsUseful for rapid prototyping and launching applications.
Strong fit
96
EducationBrowser-based coding and AI-assisted development are useful for learning.
Strong fit
92
Small BusinessUseful for internal tools, websites and business applications.
Strong fit
90
MarketingUseful for building custom tools and automation rather than routine marketing work.
Conditional
75
EnterpriseEnterprise includes SSO, SCIM, RBAC, private deployments and audit logging.
Strong fit
90

Key features

Replit Agent

Build and modify applications using natural-language instructions.

AI App Builder

Turn app ideas into working software without traditional setup.

Code Editor

Write and edit application code directly in the browser.

Built-in Database

Create and manage application databases within Replit.

Authentication

Add user sign-up and login functionality to applications.

Hosting

Publish applications directly from the Replit workspace.

Deployment

Deploy applications and make them available online.

Real-time Collaboration

Work on projects with other people in the same workspace.

Plan Mode

Plan application changes before implementation.

Security Agent

Review applications for security vulnerabilities before deployment.

Auto-Protect

Monitor published applications for newly disclosed vulnerabilities.

Secrets Management

Store API keys and sensitive credentials securely.

Version History

Track project changes and recover previous versions.

Mobile App Development

Build and manage mobile applications with Replit tools.

Custom Domains

Connect custom domains to published projects.

File Storage

Store application files and assets.

Integrations

Connect applications to external services and APIs.

QuillBot pricing

Prices checked October 2, 2026

Starter

$0 per month

  • Free daily usage
  • Built-in database
  • Publish 1 live project
  • Basic generative tools
Start for free
Most popular

Core

$18 per month billed annually

  • More Agent usage
  • $20 monthly model credits
  • Plan mode
  • Unlimited workspaces
  • Up to 5 collaborators
Join Replit Core
Most popular

Pro

$90 per month billed annually

  • More Agent usage
  • $100 monthly model credits
  • Up to 15 builders
  • Credit rollover
  • Priority support
  • Advanced features
Join Replit Pro

Enterprise

Custom custom

  • SSO/SAML
  • SCIM
  • RBAC
  • Private deployments
  • Audit logging
  • Advanced security controls
Contact Sales

Pricing calculator

Core $18 / seat, Pro $90 / seat from 5 seats.

Is QuillBot right for you?

Answer a few quick questions to see our pick.

1 What do you want to build?
2 Who are you?
3 Do you need AI coding?
4 Do you need deployment and hosting?
5 Do you need team collaboration?

How QuillBot compares

CapabilityQuillBot Cursor GitHub Codespaces Bolt.new
AI App Building Yes Yes Conditional Yes
AI Coding Agent Yes Yes Yes Yes
Cloud Development Yes Yes Yes Yes
Built-in Database Yes No No Yes
Built-in Authentication Yes No No Yes
Deployment Yes Yes Yes Yes
Hosting Yes No No Yes
Real-time Collaboration Yes Limited Limited Yes
Security Scanning Yes Yes Yes Yes
Mobile App Development Yes No No Yes

Integrations

7 integrations listed

  • Stripe
  • OpenAI
  • Google
  • GitHub
  • Slack
  • PostgreSQL
  • Supabase

Security, data & support

Security & compliance

  • SOC 2 Type IICertified
  • GDPRCompliant
  • SSOEnterprise
  • SAMLEnterprise
  • SCIMEnterprise
  • RBACEnterprise
  • Audit LoggingEnterprise
  • Private DeploymentsEnterprise
  • DDoS ProtectionAvailable
  • WAFAvailable
  • Security ScanningAvailable

Your data, in plain words

  • Replit hosts its infrastructure on Google Cloud Platform.
  • Each customer receives an isolated GCP project.
  • Development and production databases are separated.
  • Secrets and API keys are protected through Replit's secrets infrastructure.
  • Replit states that customer personal data is not sold.

Read the privacy policy

Support

  • Help CenterAll plansSelf-service
  • SupportPaid plansPlan-dependent
  • Priority SupportProFirst response under 24 business hours
  • Enterprise SupportEnterpriseDedicated support

API & languages

  • APIAvailable
  • Developer PlatformReplit Developers
  • Application IntegrationsAvailable
  • DatabaseBuilt-in
  • AuthenticationBuilt-in
  • DeploymentBuilt-in

API documentation

QuillBot FAQs

Is Replit free?

Yes. Replit has a free Starter plan with limited usage and features.

What is Replit used for?

Replit is used to build, test, deploy and host websites, applications, tools and software.

Does Replit have an AI app builder?

Yes. Replit Agent can create and modify applications from natural-language instructions.

Does Replit require coding knowledge?

No. Users can build applications using natural-language prompts, although coding knowledge is useful for advanced projects.

How much does Replit Core cost?

Core costs $20 per month or $18 per month when billed annually.

How much does Replit Pro cost?

Pro costs $100 per month or $90 per month when billed annually.

Does Replit have an Enterprise plan?

Yes. Enterprise uses custom pricing and includes advanced security and administration features.

Does Replit provide hosting?

Yes. Replit provides deployment and hosting for applications created on the platform.

Does Replit have a database?

Yes. Replit provides built-in database functionality.

Does Replit have authentication?

Yes. Replit provides built-in authentication for applications.

Can Replit build mobile apps?

Yes. Replit supports mobile app development for iOS and Android projects.

Does Replit have an API?

Replit provides developer capabilities and integrations for connecting applications and external services.

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Replit Official · 60M+ users worldwide

Replit reported more than 60 million users worldwide in September 2026.

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