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Alternatives

Calendar.Js alternatives for AI agents.

Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.

Compare shortlistView Calendar.Js

Current skill

Calendar.Js

๐Ÿ“… A javascript drag & drop event calendar, that is fully responsive and compatible with all modern browsers.

67
Quality
79
Trust
561
Stars
#1

Mjml

Similarity 118Trust 88Excellent 100

MJML: the only framework that makes responsive-email easy

18K starsJun 12, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add mjmlio/mjml
#2

Cloud Mail

Similarity 117Trust 90Excellent 100

A Cloudflare-based email service | ๅŸบไบŽ Cloudflare ็š„้‚ฎ็ฎฑๆœๅŠก | Cloudflare Email ้‚ฎ็ฎฑ Mail

11K starsJun 9, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add maillab/cloud-mail
#3

Nodemailer

Similarity 117Trust 85Excellent 100

โœ‰๏ธ Send e-mails with Node.JS โ€“ easy as cake!

18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add nodemailer/nodemailer
#4

Leantime

Similarity 117Trust 90Excellent 100

Leantime is a goals focused project management system for non-project managers. Building with ADHD, Autism, and dyslexia in mind.

10K starsJun 14, 2026 pushproductivity-automationPHPCalendar
$ npx skills add Leantime/leantime
#5

Opencommit

Similarity 116Trust 89Excellent 100

top #1 and most feature rich GPT wrapper for git โ€” generate commit messages with an LLM in 1 sec โ€” works with Claude, GPT and every other provider, supports local Ollama models too

7.3K starsJun 4, 2026 pushproductivity-automationJavaScriptProductivity
$ npx skills add di-sukharev/opencommit
#6

Frappe

Similarity 111Trust 88Excellent 100

Low code web framework for real world applications, in Python and Javascript

10K starsJun 16, 2026 pushproductivity-automationPythonEmail
$ npx skills add frappe/frappe
#7

Tutanota

Similarity 110Trust 89Excellent 100

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

7.7K starsJun 16, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add tutao/tutanota
#8

Mailspring

Similarity 110Trust 90Excellent 100

:love_letter: A beautiful, fast and fully open source mail client for Mac, Windows and Linux.

18K starsJun 15, 2026 pushproductivity-automationJavaScriptEmail
$ npx skills add Foundry376/Mailspring
#9

Screenity

Similarity 110Trust 88Excellent 100

The free and privacy-friendly screen recorder with no limits ๐ŸŽฅ

18K starsJun 11, 2026 pushproductivity-automationJavaScriptProductivity
$ npx skills add alyssaxuu/screenity
#10

TiddlyWiki5

Similarity 107Trust 82Excellent 97

A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.

8.6K starsJun 20, 2026 pushproductivity-automationJavaScriptNotes
$ npx skills add TiddlyWiki/TiddlyWiki5
#11

Next AI Draw Io

Similarity 105Trust 90Excellent 100

A next.js web application that integrates AI capabilities with draw.io diagrams. This app allows you to create, modify, and enhance diagrams through natural language commands and AI-assisted visualization.

32K starsJun 16, 2026 pushproductivity-automationTypeScriptProductivity
$ npx skills add DayuanJiang/next-ai-draw-io
#12

Excalidraw

Similarity 105Trust 88Excellent 100

Virtual whiteboard for sketching hand-drawn like diagrams

125K starsJun 16, 2026 pushproductivity-automationTypeScriptProductivity
$ npx skills add excalidraw/excalidraw
#13

Ohmyzsh

Similarity 104Trust 86Excellent 100

๐Ÿ™ƒ A delightful community-driven (with 2,500+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an auto-update tool that makes it easy to keep up with the latest updates from the community.

188K starsJun 15, 2026 pushproductivity-automationShellProductivity
$ npx skills add ohmyzsh/ohmyzsh
#14

Novu

Similarity 104Trust 85Excellent 100

The open-source communication infrastructure for agents and products

39K starsJun 16, 2026 pushproductivity-automationTypeScriptEmail
$ npx skills add novuhq/novu
#15

PHPMailer

Similarity 104Trust 88Excellent 100

The classic email sending library for PHP

22K starsJun 6, 2026 pushproductivity-automationPHPEmail
$ npx skills add PHPMailer/PHPMailer
#16

Activitywatch

Similarity 104Trust 90Excellent 100

The best free and open-source automated time tracker. Cross-platform, extensible, privacy-focused.

18K starsJun 11, 2026 pushproductivity-automationPythonProductivity
$ npx skills add ActivityWatch/activitywatch

How to choose

When should you switch?

Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Calendar.Js if it already passes your workflow test and repository review.

Next step

Compare top candidates side by side

Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.