Open Sustainable Technology is a directory and analysis of the open source ecosystem in climate change, sustainable energy, biodiversity and natural resources. Its stated mission is to find, list, and share projects that preserve or analyze natural ecosystems through open technology, methods, data, intelligence, knowledge or tools. Contributions are invited via pull request or email.
Star Fit is a tool for planning events with friends or coworkers. A user creates an event with a rough time period, enters preferences, and sends the link to participants. Results update live and show a heat-map of everyone's preferences, with the best time for the event duration calculated using STAR Voting. It is built on Crab Fit and its code is open source.
Samay is a free and open source group scheduling tool. It helps find a time which works for everyone without the back-and-forth texts and emails. The page shows a scheduling grid and offers group poll and one-on-one poll options.
Label Studio is an open source data labeling and annotation platform for multi-modal data, including text, images, audio and time series. It lists uses such as LLM and agent evaluation, computer vision, NLP and document tasks, and audio transcription. It offers API, Python SDK and webhooks, and is available via pip, Homebrew, Git and Docker.
ToolKnit is a free browser-based toolbox of 94 tools for PDF, image, video, audio and text tasks, plus a World Holidays Hub. Local file tools process files on the user's device, while AI requests go to a configured provider and speech features use a server endpoint. No account is required.
time.fyi is a calendar, task, and booking application that works with Google Calendar. It allows users to plan their week with events and tasks side by side, share booking links for others to schedule time, and view time zones for people in other cities. The site offers a 14-day free trial and a macOS app.
Footrue offers over 200 free online tools for PDF, image, text, developer, color and conversion tasks. The tools run in the browser without signup, uploads or ads, and files are described as never leaving the device. Included tools cover background removal, PDF merging, image conversion and transcription.
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Star Fit is a tool for planning events with friends or coworkers. A user creates an event with a rough time period, enters preferences, and sends the link to participants. Results update live and show a heat-map of everyone's preferences, with the best time for the event duration calculated using STAR Voting. It is built on Crab Fit and its code is open source.
Samay is a free and open source group scheduling tool. It helps find a time which works for everyone without the back-and-forth texts and emails. The page shows a scheduling grid and offers group poll and one-on-one poll options.
Label Studio is an open source data labeling and annotation platform for multi-modal data, including text, images, audio and time series. It lists uses such as LLM and agent evaluation, computer vision, NLP and document tasks, and audio transcription. It offers API, Python SDK and webhooks, and is available via pip, Homebrew, Git and Docker.
ToolKnit is a free browser-based toolbox of 94 tools for PDF, image, video, audio and text tasks, plus a World Holidays Hub. Local file tools process files on the user's device, while AI requests go to a configured provider and speech features use a server endpoint. No account is required.
time.fyi is a calendar, task, and booking application that works with Google Calendar. It allows users to plan their week with events and tasks side by side, share booking links for others to schedule time, and view time zones for people in other cities. The site offers a 14-day free trial and a macOS app.
Footrue offers over 200 free online tools for PDF, image, text, developer, color and conversion tasks. The tools run in the browser without signup, uploads or ads, and files are described as never leaving the device. Included tools cover background removal, PDF merging, image conversion and transcription.
