Unknown Index
The directory of unknown websites, tools, utilities, and archives most people never discover.
Surprise me →Histography
Weird & FunInteractive timeline of all recorded history from the Big Bang to 2015, drawing from Wikipedia to visualize the density of events by time period and category.
histography.io
OpenSecrets
Research & DataNonpartisan database of US campaign finance data and lobbying records, tracking money in politics at the candidate and organization level.
opensecrets.org
Bellingcat
Research & DataIndependent investigative journalism collective pioneering open-source intelligence techniques for conflict verification and accountability reporting.
bellingcat.com
Recently Added
The latest discoveries added to the index
SpriteFrame
Creative ToolsTurn a character image into an animated sprite sheet with AI. Or make one free from PNG frames or MP4 video. Preview, edit, and export PNG + JSON.
spriteframe.com
AllSubConverter
Productivity ToolsA privacy-first subtitle workspace: convert, edit, sync, translate, clean and export SRT, VTT, ASS, LRC, TTML and more. 117+ tools with local standard-tool processing.
allsubconverter.com
HOL Guard
AI ToolsLocal-first runtime firewall for AI coding agents. Intercepts shell, secrets, MCP, and package installs before they run. Apache-2.0. Free.
hol.org/guard
PDFAnnotations
Research & DataExtract PDF highlights, comments & notes instantly. Export to Markdown, Notion, Obsidian, CSV. Processed locally in your browser.
pdfannotations.com
AI Image Cleaner
AI ToolsFree online AI image cleaner: remove objects, people, text, and watermarks in your browser. No install, no credit card—brush a mask and download. Try free now!
ai-image-cleaner.com
Vocemo
Productivity ToolsOn-device AI for Mac: type what you say, write up meetings, read text aloud, translate, and handle PDFs. Everything runs on your own Mac. Nothing is uploaded.
vocemo.com
Collections
Themed lists of hidden tools worth discovering
7 Useful Websites Most People Have Never Heard Of
7 sitesThe internet is enormous. Most people only ever see the same handful of sites. These seven are worth knowing about.
Read collection →
5 Free Developer Tools for API Testing and Debugging
5 sitesThese tools are free, powerful, and criminally underused. If you write code, build APIs, or work with data — bookmark these.
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5 Best Free AI Research Tools for Finding Information Faster
5 sitesNot hype. Not chatbots. These AI tools solve real research and data problems that generic tools cannot handle.
Read collection →