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Paiza.IO

by Paiza.IO

Free plan APIWeb

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What Paiza.IO is

Paiza.IO is a free browser-based editor and compiler for writing and running code online. It lists support for more than 20 popular compiler and scripting languages and is presented for trying ideas, learning programming, and teaching. The editor supports multiple files, drag-and-drop uploads, and saved code that can be revisited or edited. Signed-in users can automatically sync code with GitHub Gist. Programs may connect to the internet, call external APIs, and scrape websites. Users can generate an HTML embed snippet so code runs from a blog post. Paiza.IO describes its runner as container based, with low latency and scalable infrastructure. The service is available on the web and through an API. API access is limited and not guaranteed; business users are asked to contact Paiza with expected usage. The Free plan costs nothing and includes online code editing and execution. Sign-up and sign-in support GitHub and Google authentication. Paiza.IO is headquartered in Tokyo, Japan.

Who it suits

Paiza.IO suits learners, teachers, and developers who want browser-based coding, quick experiments, or shareable embedded examples. It also supports users needing saved code, GitHub Gist syncing, and multi-file projects.

What it does well

  • Free online editing and execution
  • Supports more than 20 languages
  • Multiple files and drag-and-drop uploads
  • GitHub Gist synchronization for signed-in users
  • Programs can access external APIs

What to know first

  • API access is limited
  • API service is not guaranteed
  • Web and API platforms only
  • Public sharing is listed without private-project details

Plans

PlanBilled and limitsPrice
FreeFree code creation and execution; API access is limited and has no guaranteed service levelFree

As paiza.io lists them, read 8 Oct 2026. The maker's own page has the final word.

Verdict

Paiza.IO offers a free online coding workspace with broad language support, saved projects, and embedding options. Its API is suitable for trying applications, but access and reliability are not guaranteed.

Facts from Paiza.IO's own pages

API
The API is available for applications to try, but access is limited and service is not guaranteed; business users are asked to contact Paiza with expected usage. · paiza.io, 8 Oct 2026
Embedding
Users can generate an HTML embed snippet so code can run from a blog post. · paiza.io, 8 Oct 2026
External network
Programs can connect to the internet, including external APIs, and scrape websites. · paiza.io, 8 Oct 2026
Free plan
Yes · paiza.io, 20 Sept 2026
GitHub integration
Signed-in users can automatically sync code with GitHub Gist. · paiza.io, 8 Oct 2026
Headquarters
Tokyo, Japan · paiza.io, 28 Sept 2026
Intended users
The maker presents the service for trying ideas, learning programming, and teaching programming. · paiza.io, 8 Oct 2026
Languages
The page lists support for more than 20 popular compiler and scripting languages. · paiza.io, 8 Oct 2026
Multiple files
The editor supports multiple files and drag-and-drop file uploads. · paiza.io, 8 Oct 2026
Private projects
Yes · paiza.io, 20 Sept 2026
Purpose
Paiza.IO is an online editor and compiler where users can write and run code in a browser. · paiza.io, 8 Oct 2026
Runner engine
The maker describes its code runner as container based, with low latency and scalable infrastructure. · paiza.io, 8 Oct 2026
Saved code
Users can save code to view or edit later. · paiza.io, 8 Oct 2026
Sign-in options
The sign-up and sign-in forms offer GitHub and Google authentication. · paiza.io, 8 Oct 2026
Support
The page links to Help and Feedback/Contact. · paiza.io, 8 Oct 2026

Where Paiza.IO stands on Freedom251

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