Codebit
Python 3 · C (GCC) · Monaco · Supabase

Ship ideas in code — run them in the browser

Codebit is an online compiler and workspace: edit with Monaco, execute on Judge0, store files in the cloud, share snippets, and stay inside fair, server-enforced limits.

Built for learning, prototyping, and sharing

Everything runs through authenticated APIs — auth, storage, execution history, and admin tools included.

Monaco editor
Full IDE feel in the browser: Python & C syntax highlighting, themes synced with the site (dark/light), and keyboard shortcuts.
Judge0 execution
Run code securely through our API — your Judge0 key stays on the server. Stdin, stdout, stderr, exit code, and timing in one panel.
Cloud file manager
Save sources in Supabase Storage with per-plan quotas. Sidebar on the dashboard plus a dedicated files page with usage meters.
Execution history
Every run is recorded — revisit past submissions, languages, and results from your account.
Share snippets
Optional public links after a run so anyone can view read-only code and output — perfect for assignments or demos.
Server-side limits
Free vs Pro caps (files, storage, runs/day, CPU time) are enforced in API routes — never trust the client alone.

From editor to output in three steps

No local toolchain required — sign in, write code, run against Judge0, then save or share.

  1. 1

    Write & configure

    Pick Python or C, tune stdin, use Ctrl+Enter to run and Ctrl+S to sync files.

  2. 2

    Execute securely

    Runs go through Codebit's API with plan-aware timeouts and daily quotas on Free.

  3. 3

    Save or share

    History keeps a trace; optional snippet links expose read-only views for others.

Platform extras
Operational features teams expect behind the scenes.

Freemium plans

Free tier with daily run caps; Pro unlocks higher limits (manual upgrades via admin until billing lands).

Rate limits & abuse signals

Per-user daily quotas; repeated limit hits can flag accounts for admin review with optional email alerts.

Transactional email

Welcome mail, admin signup alerts, ban notices, and suspicious-activity notifications via Resend.

Admin & analytics

Role-gated panel: users, charts, execution logs, suspicious queue, settings, and audit trail.

Shortcuts

Ctrl+Enter (or ⌘+Enter) to run, Ctrl+S to save — stay in flow without leaving the keyboard.

Theme-aware UI

Dark and light modes across the app and editor so coding stays comfortable day or night.

Simple pricing

Limits are enforced on the server. Upgrade path is ready for payments — today, admins can move accounts to Pro manually.

Free
Great for trying Codebit and daily practice.
  • Up to 10 saved files
  • 10 MB total storage
  • 5 s max execution time
  • 20 runs per day
Pro
More capacity
For heavier workloads until checkout is wired up.
  • Unlimited saved files
  • 500 MB storage
  • 15 s max execution time
  • Unlimited runs per day

Ask an admin to upgrade your account — self-serve billing comes later.

Ready to compile in the cloud?

Join Codebit to use the full compiler, file manager, history, and snippet sharing — all under one login.