A clean copy of your project, in seconds.
RepoPrep v2.2.1 — a desktop tool for Windows that turns a messy project folder into a clean, portable version of itself. It strips out dependencies, caches, build output, lock files, and generated artifacts, and leaves you with just the source — usually shrinking a codebase from 70 MB+ down to a few MB.
Professional project cleaner — by Lidprex Labs.
Every real project accumulates the same kind of weight:
node_modulesholds tens of thousands of files you'll never open.- Build output (
dist/,target/,build/,bin/,obj/) is a copy of what your source already says. - Caches (
__pycache__,.cache,.next,.gradle) eat gigabytes. - Lock files, logs, binaries, and vendor folders add bulk and noise.
RepoPrep scans your project, recognizes what's junk for 224 languages and frameworks, and produces a cleaned copy containing only what matters.
It runs 100% locally. Nothing is uploaded, no account is needed, and your original project is never modified — RepoPrep only copies.
Copies your project while dropping the junk automatically — node_modules,
venv, .git, .next, target, build, caches, lock files, logs, and
generated artifacts. The folder structure is preserved, so project
references stay intact.
Copies every surviving file into one flat folder — a single, browseable view of the whole codebase without the folder nesting. Name collisions are renamed automatically so nothing is lost.
Previews exactly what would be skipped before anything runs. Writes nothing — just tells you what it would keep and what it would drop.
Pin file names you want kept even if they'd normally be skipped. Your picks are remembered between sessions.
Images (.png, .jpg, .gif, ...) are dropped by default to keep the output
text-only; flip the toggle to copy them when you need them.
Detects the kind of project from common manifest files and applies the right skip rules per language.
RepoPrep understands how 224 languages and frameworks store their junk, including (to name a few):
| Ecosystem | Examples of what's cleaned |
|---|---|
| JavaScript / TypeScript | node_modules, .npm, .yarn, .cache, .parcel-cache, .webpack, .turbo, lock files |
| Python | __pycache__, .pytest_cache, .mypy_cache, .tox, .venv, site-packages, egg-info |
| Java / JVM | target, .gradle, build, *.iml (Maven, Gradle, Kotlin, Scala, Clojure) |
| Go | vendor, go.sum, Gopkg.lock |
| Rust | target, Cargo.lock |
| C / C++ / C# | CMakeFiles, bin, obj, .vs, DerivedData, compile databases |
| Swift / Obj-C | .build, Pods, DerivedData, Package.resolved |
| PHP | vendor, composer.lock (Laravel, Symfony, WordPress, Drupal) |
| Ruby / Rails | .bundle, vendor/bundle, log, tmp, Gemfile.lock |
| Flutter / Dart | .dart_tool, .flutter-plugins, build, pubspec.lock |
| Mobile | Android build/.gradle/local.properties, iOS Pods, Expo .expo, Cordova platforms |
| Front-end | Next.js .next, Nuxt .nuxt, Angular .angular, Vue dist, SvelteKit .svelte-kit |
| Infra / DevOps | .terraform, .vagrant, charts, autom4te.cache, .ansible |
| Blockchain | Solidity artifacts/cache, Cairo target, Foundry caches |
| Game engines | Unity Library/Temp/Logs, Unreal Intermediate/Binaries/Saved, Godot .godot |
| And ~200 more — every entry is hand-curated junk lists, nothing that could be real source code. |
The skip rules are conservative by design: nothing that could ever be genuine source code is treated as junk.
RepoPrep is two small parts that work together:
┌─────────────────────────────┐ ┌──────────────────────────────┐
│ Electron + React UI │ IPC │ Python engine (stdlib only)│
│ The window you see │◄──────►│ scanning + copying engine │
│ i18n: EN / AR / RU / ZH │ │ core.py + languages.py │
└─────────────────────────────┘ └──────────────────────────────┘
- UI — an Electron + React + TypeScript desktop interface: frameless window, live activity log, themes, keyboard shortcuts.
- Engine — a small Python server (
engine/server.py) that does all the scanning and copying in a background process. It runs on the Python standard library only — zero external dependencies. - The UI speaks to the engine over local IPC; the engine streams progress and log lines back in real time.
- All scanning, cleaning, and flattening happens on your machine.
- No telemetry, no analytics, no update check-ins.
- The only outbound action is an explicit click on a link in the About/Report pages, which just opens your browser.
- Your source project is read-only for RepoPrep — it never deletes, moves, or rewrites a single file in it.
RepoPrep ships in 4 languages, switchable from the title bar or Settings:
- English
- Arabic (RTL-friendly)
- Russian
- Simplified Chinese
- Themes — System / Light / Dark.
- Shortcuts — every main action (scan, clean, flatten, cancel, ...) is remappable from Settings.
- Run
RepoPrep Setup 2.2.1.exe. - Pick your language and install location.
- Open the app, choose a project folder, and hit Scan or Smart Clean.
cd electron
npm install # install dependencies (Node 20+)
npm start # build the TS/TSX, then launch Electron
npm run dist # build and package the Windows installer (NSIS)The engine is plain Python (stdlib only):
python engine/server.py --port 8765 # start the engine standalone| Component | Requirement |
|---|---|
| OS | Windows 10 / 11 (x64) |
| App | No runtime dependencies — bundled in the installer |
| Engine | Python 3.8+ |
Does RepoPrep modify my original project? No. RepoPrep only copies files out to an output folder you choose. Your source is never touched.
What counts as junk? Dependencies, caches, build output, lock files, logs, and generated artifacts — the things that bloat a codebase without adding information. The 224 language profiles decide what's safe to drop.
Can I stop a long operation? Yes — Cancel stops any scan or copy without killing the app.
Does it upload my code anywhere? Never. Everything runs locally.
I keep files I need even though they'd be skipped — what do I do? Add them to your Keep List; RepoPrep will keep them even when they'd normally be skipped.
| Version | What changed |
|---|---|
| v1.1.0 (legacy) | Original release. Built on a single Python tkinter file with no installers, no icons and no language selector. Shipped straight from source — clean, simple, one file. |
| v2.2.0 | Full desktop rework — new folder structure, an official installer, real program icons and a multi-language interface (English / Arabic / Russian / Chinese). First version to ship a signed, polished Windows setup. |
| v2.2.1 (current) | Current release — rebuilt the UI in Electron + React on top of the Python engine, expanded cleanup to 224 languages and frameworks, flat transparent Logo, signed installer published under the Lidprex name. |
The release archive lives at repoprep.onrender.com/versions.html.
MIT — (c) 2026 Lidprex · lidprex.onrender.com