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Best Calendr alternatives

Explore highly rated tools in the same categories as Calendr, compared using public project data.

Recommended alternatives

12 tools

100/100

omnivore

Omnivore is a complete, open source read-it-later solution for people who like reading.

Open source Productivity
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100/100

i-have-adhd

A skill to stop your coding agent from burying the answer. ADHD-friendly output.

Open source Developer ToolsProductivity
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100/100

activepieces

AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agent

Open source AIProductivity
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100/100

Scrapling

🕷️ An adaptive Web Scraping framework that handles everything from a single request to a full-scale crawl! Don't be shy, join here: https://discord.gg/EMgGbDceN

Open source AIProductivity
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100/100

ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor

Open source AIProductivity
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100/100

FastGPT

FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and

Open source AIProductivity
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100/100

shell_gpt

A command-line productivity tool powered by AI large language models like GPT-5, will help you accomplish your tasks faster and more efficiently.

Open source AIProductivity
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100/100

bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

Open source Developer ToolsProductivity
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100/100

AIHawk

Anti detect browser and web browsing agent: an open-source MCP server for undetected browsing, AI web scraping and computer use agents. No captchas.

Open source AIProductivity
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100/100

nanobrowser

Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.

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100/100

super-productivity

Super Productivity is an advanced todo list app with integrated Timeboxing and time tracking capabilities. It also comes with integrations for Jira, GitLab, Git

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100/100

next-ai-draw-io

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 lan

Open source AIProductivity
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