# schollz/croc

Easily and securely send things from one computer to another :crocodile: :package:

Repository: https://github.com/schollz/croc
Canonical: https://ross.abutalabs.com/products/croc
Homepage: https://getcroc.com
Language: Go
License: MIT
License Family: permissive
Topics: file-sharing, tcp, golang, peer-to-peer, data-transfer, pake, transfer
Last push: 2026-08-26T11:23:09+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 3242, "days_push": 7, "days_rel": 8, "gap_med": 1, "n_releases_24m": 50}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 40107, forks 1609 (observed 2026-08-28T04:12:08.136299+00:00)

## What it is
croc is a Go CLI tool that lets any two computers securely transfer files and folders peer-to-peer with end-to-end encryption via PAKE, falling back to a relay when needed. It supports resumable transfers, multiple files, IPv6-first networking, proxy/Tor usage, and a browser client compatible with the CLI.

## Use cases
- send a file to a friend without setting up a server
- transfer files between Windows and Mac securely
- resume an interrupted large file transfer
- send files without port forwarding
- transfer files over Tor for privacy
- receive files in the browser from a CLI user

## When to choose
- you need simple, encrypted, cross-platform file transfer between two machines
- you cannot configure port forwarding or run a server
- you want resumable transfers over flaky connections

## When to avoid
- you need to share files with many recipients or host public downloads
- you need a GUI-first workflow or managed cloud storage
- you need transfer within an air-gapped network without any relay

## Facets
- artifact type: cli-tool
- maturity: stable
- function: security, cryptography, networking, p2p, cli
- domain: files, privacy, security, cross-platform
- platform: windows, cross-platform, cli, browser
- tags: file-transfer, end-to-end-encryption, pake, relay, resume-transfers, ipv6, command-line, linux, macos

## Member repositories
- schollz/croc (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:08.136299+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:24:05.141568+00:00, confidence not recorded.
  - readme: https://github.com/schollz/croc (fetched 2026-08-28T04:12:08.136299+00:00, sha 927c7abdd62c)
  - homepage: https://getcroc.com (fetched 2026-08-29T07:46:32.151162+00:00, sha 92e2330eac11)
- Data as of 2026-08-30T08:39:29.467469+00:00.