Interesting Apps & Sites

OpenSEO is the open source alternative to Ahrefs and Semrush. Keyword research, backlinks, rank tracking, and site audits, billed by usage instead of a $100-plus monthly subscription. Self-host it free, or connect it to your AI agents over MCP.

Send files directly between devices — peer-to-peer, end-to-end encrypted. No uploads, no size limits, no account. Free & open-source.

Search for anything and get an interactive app as your answer — trip planners, recipe finders, mood boards, and more. 100% free.

Railway is a full-stack cloud for deploying web apps, servers, databases, and more with automatic scaling, monitoring, and security.

Supaste is a local-first clipboard and screenshot history app for Mac. Save copied text, links, images, files, code, colors, and screenshots in a beautiful searchable timeline.

Generate infinite coherent aesthetic universes with a single click.

200+ free online tools for PDF, image, text, developer, color, and conversion tasks. Fast, private, and 100% in your browser — no signup required.

Learn how to replace all spaces with underscores, dashes, commas, periods, or other value you desire.

Whimsical is a collaborative whiteboard app for thinking and planning. Create flowcharts, mind maps, wireframes and more.

Browse portable, CSS-first design systems that help AI-assisted products maintain consistent typography, spacing, color, and component treatment.

Gapminder Worldview Upgrader - Get rid of your misconceptions about global development!

Free in-browser media converter — 2,478+ tools, no uploads. Convert MP4, MOV, MKV, WAV, MP3, FLAC & 60+ formats privately. Every tool shows the FFmpeg command.

An elevated knit polo with an easygoing Johnny collar and a super-soft feel

A memorial to the messengers, social networks, browsers and websites the internet forgot.

Give every AI Agent its own phone number. Automate lead qualification, customer support, and appointment booking with human-like AI voice agents.

Where AI meets accountability. Every result is backed by human intelligence.

Free online PDF converter to convert PDF files to other file formats. No limits. No installation or registration required.

The top 10 global news stories. Updated once a day at dawn.

TTS and voice cloning with unmatched emotion control.

Penumbra Print Shop is Robin Sloan’s new manufacturing project.

cobalt lets you save what you love without ads, tracking, paywalls or other nonsense. just paste the link and you're ready to rock!

Record your screen beautifully with automatic zoom, smooth cursor motion, captions, and cinematic effects.

A privacy-first, open-source platform for knowledge management and collaboration.

The universal editor that lets you work, play, present or create just about anything.

Browser extension that puts AI inside every text box. Write, search, summarize, and dictate — without leaving your page. Free for Chrome, Edge, Brave.

An interactive studio where you can get creative with lighting design with help from Google AI

Try my attendance tracking and grading system for free! Track attendance for any class, event, or gathering! Save time, money and effort using the simplest tool available to track your class, group, event, or employee attendance.

Generate, edit, and localize premium audio and video in minutes, powered by advanced voice, music, SFX, image, and video models.