Tool profile
OneCompiler: cost, fit and limits
OneCompiler is an online code execution and editing service that runs programs in more than 150 languages from a browser, with a Studio cloud editor that has AI chat and an in-editor agent, plus classroom features for instructors and institutions.
What to know first
OneCompiler's free plan, described as free forever, gives 100 credits a day, unlimited code runs in 150+ languages and 45 minutes of Studio time a day. Paid plans named Plus, Pro, Max and Enterprise raise credits and Studio hours, but the pricing text read shows no amounts. The maker and headquarters were not stated on the pages opened, because the terms page was not read in full.
OneCompiler at a glance
| Maker | Not stated on the vendor pages, Not stated on the vendor pages |
|---|---|
| Free plan | Yes |
| Entry price | Free forever (100 credits per day) |
| API access | Yes |
| Category | Best AI Cloud IDE Software in 2026, rank 10 of 12 |
| Website | onecompiler.com |
Who OneCompiler is best for
Students learning a new language
Code runs in 150+ languages without an install, and the free plan has no time limit on runs, only daily credits for AI features.
Instructors running classroom exercises
Challenges support up to 60 participants on Plus and 250 on Pro, which fits a lecture group or a small assessment.
Developers wanting a quick scratchpad
Studio includes AI chat and an in-editor agent, so a snippet can be written and tested in a browser tab within minutes.
OneCompiler plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Free | Free forever | 100 credits a day, unlimited code runs in 150+ languages and Studio for 45 minutes a day. |
| Plus | Price not published | 1,000 credits a day, 5 resets a month and Studio for 60 hours a month, with classroom challenges for up to 60 participants. |
| Pro | Price not published | 2,500 credits a day, 10 resets a month, Studio for 120 hours a month, Claude Sonnet and Opus, and classrooms up to 250 participants. |
| Max | Price not published | 5,000 credits a day and Studio for 240 hours a month, listed on the plan table without a price. |
| Enterprise | Price not published | 25,000 credits, aimed at institutions that run classrooms and assessments, according to the pricing page. |
Checked November 2026.
What OneCompiler does
- Run code in 150+ languages
- Programs run in the browser in more than 150 languages with no install. The free plan lists unlimited runs, so credits do not limit plain execution.
- Studio editor
- Studio is a cloud editor with AI chat and editor AI on the default model. Free includes 45 minutes a day, and paid plans list monthly hours.
- In-editor agent
- The homepage says the agent inside the editor reads the workspace, edits files in place and creates new ones. Plans name model families, including Claude, GPT and Grok.
- Classroom challenges
- Challenges let an instructor run exercises for a group, with up to 60 participants on Plus and 250 on Pro. Enterprise targets institutions running assessments.
How OneCompiler handles your data
The OneCompiler pages opened do not state whether code or prompts are used to train models, how long data is retained, where it is hosted or which certifications apply, and the terms page was not read in full for this review. Paid plans route AI requests to named model families, so a third-party model provider may handle prompts, but the pages do not describe those arrangements. The vendor's policy was not checked for this. Instructors who collect student code or assessments should obtain the terms and privacy policy before use, and companies should avoid putting proprietary source into any free scratchpad tool without written terms.
Where OneCompiler falls short in practice
- . Plus, Pro, Max and Enterprise list credits and hours but no amounts in the fetched text. A buyer cannot budget without checking the live page or asking the vendor.
- . The free plan gives 45 minutes of Studio a day and 100 credits. Longer sessions need Plus at 60 hours a month or a higher tier.
- . The maker and headquarters were not stated on the pages opened. A company doing vendor review cannot complete a legal-entity check from those pages alone.
Works with
Alternatives to OneCompiler
OneCompiler: common questions
Is OneCompiler free?
Yes. The free plan is described as free forever, with 100 credits a day, unlimited code runs in 150+ languages and 45 minutes of Studio a day. Plus, Pro, Max and Enterprise list higher allowances, but their prices were not visible in the text read.
Which languages does OneCompiler support?
The pricing page says unlimited code runs in 150+ languages on the free plan. The full list was not captured for this review, so check the live site for the exact languages you need. No install is required for running code.
Does OneCompiler have AI coding help?
Studio includes AI chat and editor AI on the default model, and the homepage describes an agent inside the editor that reads the workspace and edits files. Paid plans name Claude, GPT and Grok model families, without prices. Prices for those paid plans were not visible, and no data terms were checked.
Can teachers use OneCompiler for classes?
Challenges are built for classrooms: up to 60 participants on Plus and 250 on Pro, with an Enterprise tier for institutions running classrooms and assessments. Prices were not published in the text read, so request a quote for a school.
Who makes OneCompiler?
The pages opened did not state the maker or headquarters, because the terms and conditions page was not read in full. Do not assume a country or legal entity. Check the terms page directly if you need it for procurement.