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OnlineGDB

onlinegdb.com

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Spec score 7.8 #72 of 138 in Coding Playgrounds

Spec sheet

Purpose
OnlineGDB is a browser-based compiler and debugger; its About page describes it as an online IDE with an embedded GDB debugger.Read 8 Oct 2026 · onlinegdb.com
Free plan
YesRead 20 Sep 2026 · onlinegdb.com
Privacy
The privacy policy says the service may collect details such as name, email, social profile ID, IP address and country, and may use third-party services for tracking and advertising.Read 8 Oct 2026 · onlinegdb.com
Support
The contact page invites users to send queries, comments or concerns through a form or email info[at]onlinegdb.com and says it will respond as soon as possible.Read 8 Oct 2026 · onlinegdb.com
Classroom
OnlineGDB Docs says teachers can publish programming assignments to a class and evaluate and grade submissions in multiple ways.Read 8 Oct 2026 · docs.onlinegdb.com
Code sharing
The IDE offers live public links and shareable copies with an expiry option, and says login is required to create forever links.Read 8 Oct 2026 · onlinegdb.com
Compiler versions
The FAQ lists compiler and debugger versions for C, C++, Python 3, Rust and Fortran, including GCC 11.4.0 for C and GDB 12.1.Read 8 Oct 2026 · onlinegdb.com
Debugging
The homepage offers debug controls including start, pause, continue, step over, step into and step out; its interface says Python debugging is not yet supported.Read 8 Oct 2026 · onlinegdb.com
Execution limits
The FAQ states compilation is limited to 10 seconds, text-mode runtime to 10 seconds, memory to 256 MB, and interactive runs stop after more than 15 minutes of user inactivity.Read 8 Oct 2026 · onlinegdb.com
File and output limits
The FAQ gives a 100 KB per-file limit, a 200 KB project limit and 64 KB limits for stdin, stdout and stderr; excess stdout and stderr are truncated.Read 8 Oct 2026 · onlinegdb.com
Languages
The homepage lists C, C++, Python, PHP, Ruby, C#, OCaml, VB, Perl, Swift, Prolog, JavaScript, Pascal, COBOL, HTML, CSS and JS Code.Read 8 Oct 2026 · onlinegdb.com
Network restriction
The FAQ says programs run through the service cannot access the internet.Read 8 Oct 2026 · onlinegdb.com
Private projects
YesRead 20 Sep 2026 · onlinegdb.com
Saved project privacy
The terms say projects saved to an OnlineGDB account are private to the logged-in account.Read 8 Oct 2026 · onlinegdb.com
Third-party libraries
The FAQ lists ncurses and LAPACK as supported third-party libraries for C/C++.Read 8 Oct 2026 · onlinegdb.com

Plans and prices

Free account Free 180 days of inactivity may result in account and saved project deletion Read 8 Oct 2026 · onlinegdb.com
Premium subscription Priced on request Monthly, half-yearly or yearly; subscription won't auto-renew Ad-free experience Read 8 Oct 2026 · onlinegdb.com

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