Anvil vs Python Online
Anvil
anvil.worksPython Online
pythononline.netSide by side
| Figure | Anvil | Python Online |
|---|---|---|
| Price from | $12/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 5 | 3 |
| Spec score · Python IDEs | 9.5 (#1) | 7.5 (#14) |
| Hosting | Anvil apps can be published to Anvil hosting or exported to run on the open-source Anvil App Server. | The platform supports hosting Python web applications, including Flask, FastAPI, Django, and Streamlit, on pythononline.app subdomains with SSL. |
| Integrations | Built-in integrations include Google services, Microsoft Entra ID and Azure APIs, Facebook login, Stripe payments and Tableau extensions. | The privacy policy identifies Supabase for authentication and database hosting, LemonSqueezy for payment processing, and Cloudflare for DNS, DDoS protection, and SSL. |
| Product | Anvil is an online IDE for building and deploying full-stack web apps using Python. | Python Online is a browser-based, container-backed Python IDE for writing, running, and hosting Python applications. |
| Security | Anvil says its API removes common security flaws including injection, XSS and CSRF, and that its AI agents run in isolated sandboxes without access to the user's infrastructure or local machine. | The privacy policy describes isolated Linux namespaces, encrypted WireGuard links between internal services, and a proxy for free-tier outbound requests. |
| Support | The Production plan includes private support, and the FAQ says Production support responds to development questions within 24 working hours. | The contact form accepts general, technical, billing, bug, and abuse reports, and says the team will respond by email. |
Plans
Anvil
- FreeFree
- Hobby$12 a month
- Business$89 a month
- EnterprisePriced on request
- ProductionPrice not published
In their own words
Anvil
Anvil is an online IDE for building and deploying full-stack web apps with Python. It pairs a drag-and-drop interface designer with client-side and server-side Python, and includes Data Tables, a built-in database backed by Postgres. Apps can be published to Anvil hosting or exported to run on the open-source Anvil App Server. Developers can create HTTP APIs and connect external Python code through Uplink. Built-in user authentication and app email support cover sending and receiving messages. Anvil documentation lists integrations for Google, Microsoft Entra ID, Facebook, Stripe and Tableau, and says Python SDKs can connect other services. Apps adapt to phones and tablets; the FAQ describes them as installable Progressive Web Apps for Android, iPhone and Chromebook, with offline operation. The Free plan includes unlimited apps and cloud hosting, but provides 50,000 Data Table rows and 100 MB of Data Table storage. Anvil says its hosted infrastructure is in London on AWS eu-west-2. It also says its API removes common flaws such as injection, XSS and CSRF.
Python Online
Python Online is a browser-based, container-backed Python IDE for writing, running, and hosting applications. Code executes in isolated Linux containers, while the Monaco editor provides IntelliSense, multi-cursor editing, flexible pane layouts, and Ruff linting. Users can search PyPI and install packages in isolated project environments. Hosted Flask, FastAPI, Django, and Streamlit applications receive pythononline.app subdomains with SSL. Registered accounts can schedule one daily headless task limited to 60 seconds. A persistent Python REPL supports interactive work, and matplotlib or plotly plots can appear in the output console. The free registered account costs nothing and includes up to three projects, 512 MB cloud storage, one hibernating web app, one daily task, and proxy-based outbound access. Guest projects remain in browser memory and lack internet, hosting, and scheduling. Projects export as ZIP archives.