https://github.com/nikolaydubina/calendarheatmap

📅 Calendar heatmap inspired by GitHub contribution activity
https://github.com/nikolaydubina/calendarheatmap

cli data-visualization go web webassembly

Last synced: 7 days ago
JSON representation

📅 Calendar heatmap inspired by GitHub contribution activity

• Host: GitHub
• URL: https://github.com/nikolaydubina/calendarheatmap
• Owner: nikolaydubina
• License: mit
• Created: 2020-07-01T18:30:48.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2025-02-10T18:43:21.000Z (2 months ago)
• Last Synced: 2025-04-01T09:25:07.353Z (14 days ago)
• Topics: cli, data-visualization, go, web, webassembly
• Language: Go
• Homepage: https://calendarheatmap.io
• Size: 29.3 MB
• Stars: 409
• Watchers: 9
• Forks: 16
• Open Issues: 13
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Citation: CITATION.cff
  • Codeowners: .github/CODEOWNERS
  • Security: SECURITY.md

Awesome Lists containing this project

• awesome-go - calendarheatmap - Calendar heatmap in plain Go inspired by Github contribution activity. (Science and Data Analysis / HTTP Clients)
• zero-alloc-awesome-go - calendarheatmap - Calendar heatmap in plain Go inspired by Github contribution activity. (Science and Data Analysis / HTTP Clients)
• awesome-go-extra - calendarheatmap - 07-01T18:30:48Z|2022-07-10T04:33:30Z| (Science and Data Analysis / HTTP Clients)

README

        
[![Go Report Card](https://goreportcard.com/badge/github.com/nikolaydubina/calendarheatmap)](https://goreportcard.com/report/github.com/nikolaydubina/calendarheatmap)

[![Go Reference](https://pkg.go.dev/badge/github.com/nikolaydubina/calendarheatmap/charts.svg)](https://pkg.go.dev/github.com/nikolaydubina/calendarheatmap/charts)

[![codecov](https://codecov.io/gh/nikolaydubina/calendarheatmap/branch/master/graph/badge.svg)](https://codecov.io/gh/nikolaydubina/calendarheatmap)

[![Tests](https://github.com/nikolaydubina/calendarheatmap/workflows/Tests/badge.svg)](https://github.com/nikolaydubina/calendarheatmap/actions)

[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/avelino/awesome-go#science-and-data-analysis)

[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/nikolaydubina/calendarheatmap/badge)](https://securityscorecards.dev/viewer/?uri=github.com/nikolaydubina/calendarheatmap)

Self-contained, plain Go implementation of calendar heatmap inspired by GitHub contribution activity available via CLI and [calendarheatmap.io](https://calendarheatmap.io)

```

$ go install github.com/nikolaydubina/calendarheatmap@latest 

$ echo '{

    "2020-05-16": 8,

    "2020-05-17": 13,

    "2020-05-18": 5,

    "2020-05-19": 8,

    "2020-05-20": 5

}' | calendarheatmap > chart.png

```

Basic

![basic](docs/basic.png)

Colorscales

![col1](docs/colorscale-1.png)

![col2](docs/colorscale-2.png)

![col2](docs/colorscale-3.png)

UTF-8

![col1](docs/korean.png)

SVG

![svg](docs/korean.svg)

Without month separator

![nosep](docs/noseparator.png)

Without labels

![nolab](docs/nolabels.png)

Without labels, without separator

![nosep_nolab](docs/noseparator_nolabels.png)