Skills2026年4月14日·1 分钟阅读

croc — Send Files and Folders Securely Between Any Two Computers

croc is a simple CLI for sending files between computers. Run `croc send file.zip` on one side; croc prints a code; run `croc <code>` on the other side — end-to-end encrypted, NAT-traversing, zero setup.

Script Depot
Script Depot · Community
Agent 就绪

先审查再安装

这个资产需要先审查。复制的指令会要求 Agent dry-run、列出写入项，确认后再继续。

Needs Confirmation · 64/100策略：需确认
Agent 入口
任意 MCP/CLI Agent
类型
Skill
安装
Single
信任
信任等级：Established
入口
step-1.md
先审查命令
npx -y tokrepo@latest install 06be4236-3859-11f1-9bc6-00163e2b0d79 --target codex

先 dry-run，确认写入项后再运行此命令。

TL;DR
croc transfers files between any two computers with encryption and zero setup.
§01

What it is

croc is a simple CLI tool for sending files and folders between any two computers. Run croc send file.zip on one side, croc prints a code phrase, and run croc <code> on the other side. The transfer is end-to-end encrypted, traverses NATs and firewalls automatically, and requires zero configuration or account setup.

croc targets developers, sysadmins, and anyone who needs to transfer files between machines without setting up SSH, configuring cloud storage, or using email attachments. It works across operating systems and network configurations.

§02

Why it saves time or tokens

File transfer between computers usually involves SCP (requires SSH setup), cloud storage (requires accounts), or USB drives (requires physical access). croc eliminates all of this with a single command. The relay server handles NAT traversal, so it works even when both machines are behind firewalls. For AI-assisted workflows where generated files need to move between environments, croc provides the simplest transfer method.

§03

How to use

  1. Install croc: brew install croc or curl https://getcroc.schollz.com | bash
  2. Send a file: croc send myfile.zip
  3. On the receiving machine: croc <code-phrase> using the code shown by the sender
§04

Example

# Sender
$ croc send presentation.pdf
Sending 'presentation.pdf' (2.4 MB)
Code is: castle-gamma-piano

On the other computer run:
croc castle-gamma-piano

# Receiver
$ croc castle-gamma-piano
Accept 'presentation.pdf' (2.4 MB)? (y/n) y
Receiving...
presentation.pdf 100% |████████████| (2.4/2.4 MB, 8.2 MB/s)
FeatureDescription
E2E encryptionPAKE-based key exchange
NAT traversalWorks behind firewalls
Cross-platformmacOS, Linux, Windows
ResumeContinue interrupted transfers
FoldersSend entire directories
§05

Related on TokRepo

§06

Common pitfalls

  • The default relay server is public; for sensitive files, self-host your own relay with croc relay
  • Very large transfers (multi-GB) may be slow through the public relay; direct transfers or self-hosted relays improve speed
  • The code phrase expires after a configurable timeout; the receiver must enter it before the sender's session times out

常见问题

Is croc secure?+

Yes. croc uses PAKE (Password Authenticated Key Exchange) to establish an encrypted channel using the code phrase as the shared secret. The relay server cannot read the file contents. End-to-end encryption ensures only the sender and receiver with the correct code can access the data.

Can I self-host the croc relay server?+

Yes. Run croc relay on any server with a public IP. Configure clients to use your relay with the --relay flag. Self-hosting gives you control over the relay infrastructure and avoids sending data through the public relay server.

Does croc work across different operating systems?+

Yes. croc runs on macOS, Linux, Windows, FreeBSD, and Android (via Termux). You can send files from a Mac to a Windows machine or between any combination of supported platforms. The protocol is OS-agnostic.

Can croc transfer folders?+

Yes. Use croc send myfolder/ to send an entire directory. croc compresses the folder, transfers it, and decompresses it on the receiving end. The directory structure is preserved.

How does croc handle interrupted transfers?+

croc supports resumable transfers. If the connection drops during a large file transfer, re-run the same croc command with the same code and it resumes from where it left off rather than starting over.

引用来源 (3)
  • croc GitHub— croc is a CLI for secure file transfer
  • croc Security— PAKE-based key exchange for end-to-end encryption
  • croc Relay— NAT traversal techniques for peer-to-peer connections
TokRepo 相关
DevOps toolsSelf-hosted toolsFeatured workflows

讨论

登录后参与讨论。
还没有评论，来写第一条吧。

相关资产

magic-wormhole — Get Things from One Computer to Another, Safely

magic-wormhole sends files and text between computers using short human-readable codes like "7-crossover-clockwork". End-to-end encrypted via PAKE, relay-free when possible, and the original inspiration for croc and friends.

Skills
AI Open Source

React Email — Build and Send Emails Using React

React Email lets developers create beautiful HTML emails with React components, preview in browser, and send via Resend, Nodemailer, or any ESP.

Skills
Script Depot

entr — Run Arbitrary Commands When Files Change

entr is a tiny, dependency-free event notify-based tool for running commands when any file in a list changes, perfect for live-reload workflows with tests, linters, and builds.

Skills
Script Depot

q — Run SQL Directly on CSV, TSV, and Log Files

q (harelba/q) runs full SQLite-compatible SQL queries against CSVs, TSVs, and any delimited text file on disk — turning ad-hoc log digging into a one-line SQL statement.

Skills
AI Open Source
◈首页🔍搜索👤我的