base on Easily and securely send things from one computer to another :crocodile: :package: <p align="center"> <img src="https://user-images.githubusercontent.com/6550035/46709024-9b23ad00-cbf6-11e8-9fb2-ca8b20b7dbec.jpg" width="408px" border="0" alt="croc"> <br> <a href="https://github.com/schollz/croc/releases/latest"> <img src="https://img.shields.io/github/v/release/schollz/croc" alt="Version"> </a> <a href="https://github.com/schollz/croc/actions/workflows/ci.yml"> <img src="https://github.com/schollz/croc/actions/workflows/ci.yml/badge.svg" alt="Build Status"> </a> </p> <p align="center"> This project is supported by <a href="https://github.com/sponsors/schollz">GitHub sponsors</a>. </p> ## About `croc` is a tool that allows any two computers to simply and securely transfer files and folders. AFAIK, *croc* is the only CLI file-transfer tool that does **all** of the following: - Allows **any two computers** to transfer data (using a relay) - Provides **end-to-end encryption** (using PAKE) - Enables easy **cross-platform** transfers (Windows, Linux, Mac) - Allows **multiple file** transfers - Allows **resuming transfers** that are interrupted - No need for local server or port-forwarding - **IPv6-first** with IPv4 fallback - Can **use a proxy**, like Tor For more information about `croc`, see [my blog post](https://schollz.com/tinker/croc6/) or read a [recent interview I did](https://console.substack.com/p/console-91).  ## Install You can download [the latest release for your system](https://github.com/schollz/croc/releases/latest), or install a release from the command-line: ```bash curl https://getcroc.schollz.com | bash ``` ### On macOS Using [Homebrew](https://brew.sh/): ```bash brew install croc ``` Using [MacPorts](https://www.macports.org/): ```bash sudo port selfupdate sudo port install croc ``` ### On Windows You can install the latest release with [Scoop](https://scoop.sh/), [Chocolatey](https://chocolatey.org/), or [Winget](https://learn.microsoft.com/windows/package-manager/): ```bash scoop install croc ``` ```bash choco install croc ``` ```bash winget install schollz.croc ``` ### On Unix You can install the latest release with [Nix](https://nixos.org/): ```bash nix-env -i croc ``` ### On Alpine Linux First, install dependencies: ```bash apk add bash coreutils wget -qO- https://getcroc.schollz.com | bash ``` ### On Arch Linux Install with `pacman`: ```bash pacman -S croc ``` ### On Fedora Install with `dnf`: ```bash dnf install croc ``` ### On Gentoo Install with `portage`: ```bash emerge net-misc/croc ``` ### On Termux Install with `pkg`: ```bash pkg install croc ``` ### On FreeBSD Install with `pkg`: ```bash pkg install croc ``` ### On Linux, macOS, and Windows via Conda You can install from [conda-forge](https://github.com/conda-forge/croc-feedstock) globally with [`pixi`](https://pixi.sh/): ```bash pixi global install croc ``` Or install into a particular environment with [`conda`](https://docs.conda.io/projects/conda/): ```bash conda install --channel conda-forge croc ``` ### Build from Source If you prefer, you can [install Go](https://go.dev/dl/) and build from source (requires Go 1.22+): ```bash go install github.com/schollz/croc/v10@latest ``` ### On Android There is a 3rd-party F-Droid app [available to download](https://f-droid.org/packages/com.github.howeyc.crocgui/). ## Usage To send a file, simply do: ```bash $ croc send [file(s)-or-folder] Sending 'file-or-folder' (X MB) Code is: code-phrase ``` Then, to receive the file (or folder) on another computer, run: ```bash croc code-phrase ``` The code phrase is used to establish password-authenticated key agreement ([PAKE](https://en.wikipedia.org/wiki/Password-authenticated_key_agreement)) which generates a secret key for the sender and recipient to use for end-to-end encryption. ### Customizations & Options #### Using `croc` on Linux or macOS On Linux and macOS, the sending and receiving process is slightly different to avoid [leaking the secret via the process name](https://nvd.nist.gov/vuln/detail/CVE-2023-43621). You will need to run `croc` with the secret as an environment variable. For example, to receive with the secret `***`: ```bash CROC_SECRET=*** croc ``` For single-user systems, the default behavior can be permanently enabled by running: ```bash croc --classic ``` #### Custom Code Phrase You can send with your own code phrase (must be more than 6 characters): ```bash croc send --code [code-phrase] [file(s)-or-folder] ``` #### Allow Overwriting Without Prompt To automatically overwrite files without prompting, use the `--overwrite` flag: ```bash croc --yes --overwrite <code> ``` #### Excluding Folders To exclude folders from being sent, use the `--exclude` flag with comma-delimited exclusions: ```bash croc send --exclude "node_modules,.venv" [folder] ``` #### Use Pipes - stdin and stdout You can pipe to `croc`: ```bash cat [filename] | croc send ``` To receive the file to `stdout`, you can use: ```bash croc --yes [code-phrase] > out ``` #### Send Text To send URLs or short text, use: ```bash croc send --text "hello world" ``` #### Use a Proxy You can send files via a proxy by adding `--socks5`: ```bash croc --socks5 "127.0.0.1:9050" send SOMEFILE ``` #### Change Encryption Curve To choose a different elliptic curve for encryption, use the `--curve` flag: ```bash croc --curve p521 <codephrase> ``` #### Change Hash Algorithm For faster hashing, use the `imohash` algorithm: ```bash croc send --hash imohash SOMEFILE ``` #### Self-host Relay You can run your own relay: ```bash croc relay ``` By default, it uses TCP ports 9009-9013. You can customize the ports (e.g., `croc relay --ports 1111,1112`), but at least **2** ports are required. To send files using your relay: ```bash croc --relay "myrelay.example.com:9009" send [filename] ``` #### Self-host Relay with Docker You can also run a relay with Docker: ```bash docker run -d -p 9009-9013:9009-9013 -e CROC_PASS='YOURPASSWORD' schollz/croc ``` To send files using your custom relay: ```bash croc --pass YOURPASSWORD --relay "myreal.example.com:9009" send [filename] ``` ## Acknowledgements `croc` has evolved through many iterations, and I am thankful for the contributions! Special thanks to: - [@warner](https://github.com/warner) for the [idea](https://github.com/magic-wormhole/magic-wormhole) - [@tscholl2](https://github.com/tscholl2) for the [encryption gists](https://gist.github.com/tscholl2/dc7dc15dc132ea70a98e8542fefffa28) - [@skorokithakis](https://github.com/skorokithakis) for [proxying two connections](https://www.stavros.io/posts/proxying-two-connections-go/) And many more! ", Assign "at most 3 tags" to the expected json: {"id":"2300","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"