OpenCut
An open-source video editor designed to run in the browser.
All sites
Browse hand-picked design inspiration, development tools, and research resources. Read an introduction before visiting the official site.
1976 sites, sorted by name. Showing 1249–1296.
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OpenFaaS
Functions deployed on Kubernetes
OpenFGA
Relationship models for fine-grained permissions
OpenHands
Agents for software development workflows
OpenRCT2
A reimplementation of the RollerCoaster Tycoon 2 engine.
OpenSCAD
A script-based solid modeler using geometric descriptions and parameters.
OpenSearch
OpenSearch offers a search and analytics platform with open documentation for teams building a queryable operational log index.
OpenShot
A video editor combining footage, audio tracks, titles, and effects.
OpenStax
Read open textbooks chapter by chapter.
OpenStreetMap
View and edit an open global street map.
OpenTofu
OpenTofu offers open-source infrastructure-as-code tooling for teams maintaining reviewable environment definitions.
OpenToonz
Software for organizing 2D animation drawing and production.
OpenTTD
A transport simulation game about building and running networks.
OpenupEd
Find European open online courses and education resources.
Openverse
Search images and audio marked with open licenses or public-domain status, with source and license details.
OpenYurt
Kubernetes extended for edge environments
Optimizilla
An image compressor with adjustable quality for common image formats.
Organic Chemistry Portal
Follow organic reactions and research topics.
Origami Club
An origami collection organized around traditional and everyday subjects.
Origami.me
Origami instructions presented through diagrams, steps, and videos.
Orleans
Virtual actors for distributed .NET
Oruga
Oruga is a Vue component library that can use different CSS themes.
Ory
Ory offers identity, authorization, and account services for teams separating sign-in from permissions management.
OSV
Vulnerability records linked to package versions
osv-scanner
Dependency checks against vulnerability data
Our World in Data
Read articles and charts on long-run global trends.
OurGroceries
Shared grocery lists for coordinating household purchases.
Outline
Outline focuses on a searchable shared knowledge base.
Oxc
Oxlint docs list configuration, integration, and migration topics. Useful when you need to examine how to configure the linter.
Oxford Learner's Dictionaries
Find English learner entries and grammar resources.
Oxford Text Archive
Find archived digital texts and corpus records.
PageSpeed Insights
PageSpeed Insights offers web performance measurement and diagnostics for teams finding mobile page loading bottlenecks.
Paleobiology Database
Query fossil occurrences and paleobiological distributions.
Paletton
Paletton focuses on adjusting palettes with a color wheel.
Panel
Interactive data applications in Python
PANGAEA
Find georeferenced Earth and environmental research data.
PanSci
Read science and research stories in Traditional Chinese.
Pants
Selective tasks in monorepos
Paper
A design tool for making, sharing, and preparing digital work for delivery.
Paper Kawaii
Origami and paper-craft tutorials using photos, videos, and diagrams.
PaperCSS
PaperCSS offers CSS components with a hand-drawn paper feel.
PARADISEC
Explore recordings of endangered languages and cultures.
Parcel
The web app guide shows where a frontend application begins. Useful when you need to check how page assets enter the bundler.
Paris Musées Collections
Explore object and archive records from Paris's municipal museums.
ParlGov
Browse historical party, election, and cabinet data.
Parsec
A low-latency remote desktop service for interactive work and play.
Particle Data Group
Consult particle properties, reviews, and physics reference tables.
Pastry Chef Online
Baking recipes, techniques, and practical explanations for pastry preparation.