SankeyMATIC
A free, no-sign-up browser editor for building and exporting Sankey flow diagrams from text inputs.
Discover
JSON Hero
A free, no-sign-up web viewer for searching, inspecting, and sharing JSON from text, URLs, or local files.
Tally
A focused, free form builder for no-code forms with unlimited submissions, logic, calculations, and common integrations.
WebPlotDigitizer
A focused open-source web app for recovering data from chart images by calibrating axes, tracing points or curves, and exporting a dataset.
OpenRefine
A free, open-source desktop tool for cleaning, transforming, clustering, reconciling, and privately improving messy data.
Firecrawl
A web-data API for AI applications that search, scrape, crawl, map, and interact with sites to return clean content and structured data.
Flowise
An open-source visual platform for building AI agents, chatflows, and LLM workflows with cloud and self-hosted deployment options.
Sentry
Application monitoring for finding errors, tracing performance problems, and investigating production issues.
Metabase
Open-source business intelligence for building, sharing, and embedding interactive dashboards from connected data.
Typeform
Custom forms, surveys, and questionnaires.
Zapier
No-code automation between connected apps.
TableConvert
A browser table editor and converter for moving structured data between spreadsheet, markup, and code formats.
Mapshaper
A browser workbench for inspecting, simplifying, editing, and converting common geospatial data formats.
RAWGraphs
An open-source browser app for turning spreadsheet and CSV data into conventional and uncommon visualizations.
CyberChef
A browser workbench for encoding, decoding, compression, hashing, parsing, and other data transformations.