Free Tools · Open Writing · Est. 2026
翼 — tsubasa · giving knowledge wings
Free, open tools and independent writing on technology, privacy, and the world as I see it. No paywalls, no ads, no tracking — because learning should never cost money. Everything here is free, and stays free.
宣言
Knowledge locked behind money isn't knowledge — it's a fence. So I build tools, write freely, and give it all away. If one person learns something here without paying for the privilege, this site has done its job.
£0, forever. No tuition, no ads, no upsell, nothing behind a paywall.
Tools and notes anyone can use, copy, and share. Built in the open.
No trackers, no accounts required, no data harvested from you.
Writing that answers to no sponsor, no platform — just the truth as I see it.
制作物
A free, structured set of Japanese tools — Kana Speed Reader, N5 study guide, particle drill, sentence scramble, and pattern drill. N5 → N1, one tool at a time.
Open Hub 改 App · Free · LiveA life-RPG that gamifies self-improvement. Track six stats, earn XP, climb ranks from E to S★, and build daily streaks. Turn getting better into a game you actually play.
Open App 大学 Education · Free · NewA free online campus you explore door by door — the sky follows your clock. Languages, an IGCSE hall, and a sealed A-Level tower. Flashcards, notes, and lectures, free forever.
Step Through the Gate 筆 Writing · OngoingNotes and essays on privacy, technology, education, and politics. Unfiltered, independent, and written to think out loud — not to sell you anything.
Read Entries日誌
Manifesto
The first note. On why every tool here costs nothing, and why I think education behind a paywall is one of the quiet tragedies of the modern web.
Read →Notes on the surveilled web
Privacy · TechWho really owns your education
Essay · PoliticsBuilding tools that outlive their maker
Open SourceSpotted an error, have an idea for a tool, want to translate a resource, or just want to talk? The inbox is open — no account, no email of yours required beyond a reply address.
Found a bug or a mistake in a tool? Tell me and I'll fix it.
Have a resource that should be free? Let's put it here.
Just want to say the work helped? That's the best message of all.