Directory
A curated index of useful tools and sites we keep coming back to. Each entry is vetted by hand and tagged for free / open-source. No affiliate links, no link rot, no SEO spam.
52 of 52 entries
DeveloperSee all
GitHub
github.com
Git hosting, issues, CI/CD, and the world's biggest code commons.
FreegitcicodeGitLab
about.gitlab.com
Git hosting + DevOps platform. Strong CI, self-hostable.
FreeOpen sourcegitcidevopsCodeberg
codeberg.org
Community-driven Git hosting on top of Forgejo. No tracking.
FreeOpen sourcegitopen-sourceVS Code for the Web
vscode.dev
The full editor in the browser. Open any GitHub repo with `.dev`.
FreeeditorbrowserStackBlitz
stackblitz.com
In-browser Node.js + npm via WebContainers. Fast project sandboxes.
FreesandboxbrowsernodeCodeSandbox
codesandbox.io
Cloud-based dev environments and shareable web sandboxes.
Freesandboxbrowserregex101
regex101.com
Regex tester with multi-flavor support and a real-time explainer.
FreeregextestCarbon
carbon.now.sh
Beautiful code screenshots for slides, blogs, and tweets.
FreeOpen sourcescreenshotshareTransform.tools
transform.tools
JSON/SVG/HTML to TypeScript/Rust/Go/etc. — a pile of converters.
FreeOpen sourceconvertcodegenQuickType
quicktype.io
Generate typed models for any language from a JSON sample.
FreeOpen sourcejsoncodegentypes
DesignSee all
Figma
figma.com
The collaborative design tool everyone uses now.
FreeuivectorcollabPenpot
penpot.app
Open-source Figma alternative. Self-host or cloud.
FreeOpen sourceuivectoropen-sourceExcalidraw
excalidraw.com
Hand-drawn-feel diagrams. Perfect for whiteboard sketches and docs.
FreeOpen sourcediagramsketchtldraw
tldraw.com
Infinite-canvas whiteboard with great drawing primitives. Embeddable.
FreeOpen sourcediagramwhiteboardCoolors
coolors.co
Generate, browse, and lock color palettes.
FreecolorpaletteFontshare
fontshare.com
Free professional fonts for personal and commercial use.
FreefontstypographyTinyPNG
tinypng.com
Lossy PNG/JPG/WebP compression with a generous free tier.
Freecompressimageremove.bg
remove.bg
Background removal in one click. The fastest way to clean up product shots.
imagebackground
AISee all
Claude
claude.ai
Anthropic's chatbot. Strong at long-form reasoning and code.
chatcodeChatGPT
chat.openai.com
OpenAI's conversational AI. Multi-modal, with code interpreter.
chatPerplexity
perplexity.ai
Search-grounded AI answers with sources cited inline.
FreesearchresearchHugging Face
huggingface.co
Open-source AI hub: models, datasets, demos, leaderboards.
FreeOpen sourcemodelsopen-sourceOllama
ollama.com
Run large language models locally with one command.
FreeOpen sourcelocalllmself-host
PrivacySee all
DuckDuckGo
duckduckgo.com
Privacy-respecting search engine, no tracking.
FreesearchKagi
kagi.com
Paid, no-ads, no-tracking search. Custom rank by domain.
searchProton Mail
proton.me
End-to-end encrypted email from Switzerland.
FreeemailencryptionTuta
tuta.com
End-to-end encrypted email and calendar, open-source clients.
FreeOpen sourceemailencryptionSignal
signal.org
End-to-end encrypted messenger run by a non-profit.
FreeOpen sourcechatmessagingMullvad VPN
mullvad.net
No-account VPN. Pay flat rate; no logs.
vpnanonymityPrivacy Guides
privacyguides.org
Independent recommendations for privacy-respecting software.
FreeOpen sourcerecommendationsguide
ProductivitySee all
Obsidian
obsidian.md
Local-first markdown notes with backlinks. Plugins go deep.
FreenotesmarkdownlocalNotion
notion.so
Docs + databases + wikis in one. Now with AI inline.
FreedocswikiteamLogseq
logseq.com
Outliner notes with daily journals and a graph view. Local-first.
FreeOpen sourcenotesoutlinerlocalTodoist
todoist.com
Cross-platform tasks with natural-language input.
FreetasksRaycast
raycast.com
macOS launcher on steroids. Calculator, snippets, scripts, AI.
FreelaunchermacosNotion Calendar
notion.com
Beautiful cross-platform calendar (formerly Cron).
Freecalendar
Self-HostingSee all
Caddy
caddyserver.com
Web server with automatic HTTPS by default.
FreeOpen sourceweb-serverhttpsDocker
docker.com
Containers — the standard packaging for self-hosted apps.
FreecontainersCoolify
coolify.io
Self-hosted Heroku/Vercel alternative. Auto-deploy from Git.
FreeOpen sourcepaasdeployUptime Kuma
github.com
Self-hosted uptime monitoring with a beautiful dashboard.
FreeOpen sourcemonitoringuptimeNextcloud
nextcloud.com
Self-hosted file sync, calendar, contacts, office. Your own cloud.
FreeOpen sourcefilesofficeawesome-selfhosted
awesome-selfhosted.net
Massive curated list of free, open-source self-hostable apps.
FreeOpen sourceindexlist
SecuritySee all
Have I Been Pwned
haveibeenpwned.com
Check if your email/phone shows up in a known data breach.
FreebreachcheckBitwarden
bitwarden.com
Open-source password manager. Self-hostable via Vaultwarden.
FreeOpen sourcepasswordvault1Password
1password.com
Polished commercial password manager. Excellent macOS/iOS apps.
passwordvaultSSL Labs
ssllabs.com
Audit any HTTPS endpoint's TLS configuration.
FreetlshttpsauditHardenize
hardenize.com
Comprehensive security report for any domain (TLS, DNS, headers, email).
Freeauditdomain
LearningSee all
MDN Web Docs
developer.mozilla.org
The reference for HTML/CSS/JS and web APIs. Always up-to-date.
FreeOpen sourcereferencewebfreeCodeCamp
freecodecamp.org
Free coding curriculum with certifications. Real projects to build.
FreeOpen sourcecourseinteractiveExercism
exercism.org
Practice 70+ programming languages with feedback from mentors.
FreeOpen sourcepracticementorsKhan Academy
khanacademy.org
Free world-class education across math, science, and more.
FreecoursemathMIT OpenCourseWare
ocw.mit.edu
Free MIT course materials, lectures, assignments.
Freecourseuniversity