px0 is a review workbench and speed-first IDE built for AI-generated code. It boots in under 1 millisecond and uses approximately 20 MB of RAM, turning your browser into a zero-latency console with native Git and GitHub integrations, instant search across massive codebases, and seamless handoff to local AI coding harnesses.

Can px0 be used to inspect code on remote servers and cloud VMs?

Yes. px0 is remote-first. You can run `px0 -host 0.0.0.0` on any remote server, VM, CI runner, or container and browse the codebase directly from your local web browser over HTTP or TLS, without configuring SSH keys, setting up port-forwarding tunnels, or running heavy server daemons.

Why use px0 instead of a heavy editor like VS Code?

Code increasingly arrives from the terminal via AI coding agents, compilers, or remote test runners. Developers spend most of their time in verification, audit, and navigation. Full desktop IDEs take seconds to boot and consume 1.4+ GB of RAM just to inspect files. px0 starts in under 1 ms with ~20 MB RAM, providing zero-latency code reading and delegated agent editing without editor bloat.

Does px0 require language servers to work?

No. Language servers are completely optional. px0 automatically detects servers like gopls, rust-analyzer, or clangd on your PATH if present, but falls back instantly to a built-in regex-based outline and fuzzy search if no server is installed.

How does px0 handle large repositories?

px0 uses windowed syntax highlighting and virtual DOM rendering (only rendering visible rows on screen), so opening a 400,000-line file costs the same as a 10-line file. It fuzzy-finds across the Linux kernel (95,710 files) in 6 ms.

How do I install px0?

Run `curl -fsSL https://px0.ai/install.sh | sh` on macOS, Linux, or BSD. Prebuilt binaries for 15 OS and architecture targets are also available on GitHub Releases.

How do I avoid sudo prompts when installing or updating px0?

If px0 was previously installed with sudo, remove the active root-owned binary and reinstall cleanly to user space (~/.local/bin) by running: `sudo rm -f "$(which px0)" && curl -fsSL https://px0.ai/install.sh | sh`. All future updates will then run in user space with zero sudo requirements.

Does px0 send code or project data to the cloud?

No. px0 runs strictly locally and never transmits your code, file paths, symbol names, or search queries.

Tips & Tricks Discovery System

px0 includes a built-in tips and tricks system designed to help developers discover powerful keyboard shortcuts, Git workflows, PR review capabilities, and editor features without blocking startup or cluttering the interface.

Non-Intrusive Discovery Architecture

Unlike heavy IDEs that block startup with large modal windows, px0 loads tips asynchronously in the background with zero performance impact on the initial render:

Floating Tip Widget: Appears smoothly in the bottom-right corner after an initial quiet period (~1.8 seconds). It displays one tip at a time with previous/next controls (‹ and ›), category tags, and optional keyboard shortcut badges.
Dedicated Inspector Tab: An inspector panel labeled Tips (#pane-right-tips) lists all available tips in a searchable, filterable catalog directly alongside your code.
Offline Fallback Engine: Tips are loaded asynchronously from https://px0.ai/tips.json and cached locally. When offline or disconnected from the network, px0 automatically falls back to built-in default tips.
Permanent Dismissal: If you prefer not to see popup tips, you can dismiss them permanently with a single click.

How to Access Tips

You can view and browse tips through several convenient entry points:

The widget appears in the lower-right corner of the editor window. Use the ‹ and › buttons to cycle through tips manually, or let it advance automatically. Click Don’t show tips to disable floating popups permanently.

Click the help icon (?) in the bottom sidebar footer (next to the theme palette and settings buttons) to open the Tips tab in the right inspector panel immediately.

3. Inspector Tab

Click the Tips tab in the top header of the right-side inspector. The panel lets you search tips by keyword or filter them by category:

Navigation: File finding, jump to line, symbol jumping.
Git: Branch diffs, commit stepping, PR review modes.
AI: Inline edits, thread conversations, batch apply.
Editing: File edits, indentation, save shortcuts.
Viewer: Word wrap, Markdown preview, image zoom.
Workbench: Autocompletion, pinned workspaces, worktree checkouts.
Performance: Virtualized rendering, LSP memory, index tuning.

4. Command Palette

Press Cmd/Ctrl + Shift + P and select:

Help: Tips & Tricks (All Tips): Opens the full tips list in the inspector panel.
Help: Show Tip: Triggers the floating tip widget to display a random discovery tip.

5. Keyboard Cheat Sheet

Press ? anywhere in the app to display the keyboard shortcut sheet, then click the 💡 Tips & Tricks button at the top of the modal.

Configuring Tip Preferences

You can customize tip behavior in Settings (Cmd/Ctrl+,):

Enable / Disable Popups: Set tips.enabled to false in Settings to prevent the floating widget from ever appearing. The inspector tab and Command Palette actions remain accessible whenever you want to browse tips manually.
One-Click Dismissal: Clicking Don’t show tips on the floating widget automatically sets tips.enabled: false in your configuration file.