Free & open sourceStop alt-tabbing.Start shipping.
Your terminal, browser, and devtools are split across three apps.
vbcdr puts them in one window so you can actually build in parallel.
Stop alt-tabbing.Start shipping.
Your terminal, browser, and devtools are split across three apps.
vbcdr puts them in one window so you can actually build in parallel.
Stop alt-tabbing.Start shipping.
Your terminal, browser, and devtools are split across three apps.
vbcdr puts them in one window so you can actually build in parallel.
Building in parallel is broken
AI agents let you run four projects at once. But your terminal, browser, and editor were never designed for that.
Watch Theo (t3.gg) break down the problemWhich terminal was that?
A workflow finishes. You hop between terminal tabs trying to find it. Then you need the right browser. Which port was it on again?
Port and auth collisions
Localhost shares cookies across all ports. Three projects on three ports all break each other's auth redirects and session state
Context split across apps
Your mental model says everything belongs to one project — but it's scattered across terminal windows, browser tabs, and editor instances
One window per project
Terminal, browser preview, and devtools all live together. No more hunting for the right tab across three different apps
Isolated environments
Each project gets its own browser context. No shared cookies, no port conflicts, no broken auth redirects
Parallel without the pain
Run four projects at once and switch between them instantly — terminals, layout, and state all preserved per project
From repo to running in seconds
No plugins, no config, no workspace setup ritual. Open a project and everything is already wired together.
Open a project
Drop any repo into vbcdr. It gets its own isolated workspace — terminals, browser context, layout, and theme all scoped to that project.
Prompt your agent
Describe what you want in natural language. Drag in mockups, screenshots, or reference files. Kick off a long-running task and switch to another project while it works.
See it live, ship it
Changes appear in the built-in preview instantly. Errors forward to your agent with one click. No more copy-pasting stack traces like a middleman.
Built for the way you actually work
Every feature exists because working across multiple projects at once kept breaking in dumb ways
Project isolation
Each project gets its own browser context, cookies, and localStorage — no more cross-port collisions
Drag and drop
Drag files, screenshots, or mockups into terminals — they auto-attach as context for your agent
11 themes
Dracula, Catppuccin, Nord, Tokyo Night, and more — each with dark and light variants
Device emulation
Preview your app in mobile, tablet, and desktop viewports with proper user agents
Git visualization
Commit graph with branch lanes and one-click commit actions — no more switching to GitHub to see what's going on
Multi-project workspace
Run four or five projects in parallel and switch between them without losing terminal state or layout
Network inspector
See every request with headers, timing, and response sizes — forward failures to your agent in one click
Credential manager
Different Convex and Clerk environments, no problem — every project gets its own isolated credential store
Free forever. No catch.
No vendor lock-in, no telemetry, no premium tier. MIT licensed and built in the open.
Star on GitHub
100% open source
MIT licensed. Read every line, fork it, make it yours
Works with any agent
Claude Code, Codex CLI, Aider, Copilot — bring whatever agent you prefer
Built from frustration
Born from the real pain of managing five projects across three apps every day