By judge0
judge0 — Robust, fast, scalable, and sandboxed open-source online code execution system for humans and AI. Listed under Code execution sandboxes in the Orchestration / Agents layer. 5 of 6 comparison attributes are recorded, each with the page it was read from.
Open-source online code execution system | Secure sandboxed code execution for humans and AI | Competitive programming, E-learning, IDE, AI-agents
4 OF 4 SIGNALS HELD
What it runs on, and what runs on it
0 cited edgesComputed from the stack graph, both directions. Every cited edge links the page it was read from; a vendor-added one links the vendor’s own source — this is the reason to be here rather than on the vendor’s own site.
No edges on record for judge0.
Nothing in the directory documents depending on it, and its own docs do not name what it runs on. An edge is only stored when a source states it.
Submit a documented integration →From judge0? No claim is needed for this: a link to your docs that names what judge0 runs on is enough.
Open-source signals
A HOLLOW RING IS UNMEASURED, NOT ZERO · WE DO NOT SUBSTITUTE A PARENT COMPANY’S REPOSITORY FOR A PRODUCT THAT HAS NONE
Price
We hold no price for this product.
The seller publishes a pricing page, linked above, but we read no rate from it. Either it quotes by sales call rather than in public, or the last reading passed 21 days and was hidden rather than shown stale. If that changes — or if you publish /.well-known/pricing.json — it appears here with a capture date.
How we read prices →What its categories ask
5 answered · 1 unanswered6 questions declared by Code execution sandboxes. Most rows across the directory read like these.
A ROW WITH NO ANSWER IS NOT A ROW WITH A “NO” · A VENDOR MAY ANSWER A BLANK ONE, MARKED VENDOR CLAIMED WITH ITS SOURCE · A DOCUMENTED VALUE IS DISPUTED, NOT OVERWRITTEN, AND STAYS VISIBLE WHILE WE RE-READ THE SOURCE
Practitioner reviews
Nobody has written one yet.
A review here is structured, not a star: hardware, scale band, what broke in production, and whether you would choose it again.
NO PERCENTAGE IS SHOWN UNDER FIVE REVIEWS · NO STAR RATINGS, EVER
More from judge0
1 other product from judge0. Listed under the same organisation record — see the company page.
Also in this category
46 products in Code execution sandboxes. Comparison defaults to within the category — pairing this with a GPU cloud would produce a page that means nothing.
USED BY = LISTED PRODUCTS DEPENDING ON IT, IN THIS DIRECTORY
Frequently asked
Is judge0 open source?
Does judge0 offer open source?
What does a blank mean on the judge0 page?
Where do the judge0 figures come from?
Can judge0 change what this page says?
Something here is wrong — how do I fix it?
Is this listing run by judge0?
Cite this page
A model that quotes us should quote us correctly. The reading and its date sit inside the citation rather than beside it, because a quotation carrying only a URL goes wrong the week the URL changes.
infratoapp, “judge0 — Code execution sandboxes”, read 6 October 2026. Cold start: 60 s as published at judge0.com. https://www.infratoapp.com/products/judge0
What judge0 can and cannot change here
Claiming judge0 lets its admins and editors change the tagline, description, logo, docs link and deployment model of every product that org owns — live, labelled as theirs, and logged. Answers to blank questions and dependencies go live too, marked as the owner’s and sourced; a documented answer cannot be overwritten. Everything else on this page is a stated fact with a dispute route: price, licence and OSS figures. Those columns are ungranted at the database level, so they are not a feature we withheld — they are a write that cannot happen. Name, category, website, pricing page and package names can be changed by the owner only through our review. A dispute never deletes a value; it marks it and publishes the correction.