OnecaratEditor Core
A quiet, focused text editor with local AI. AI inference and document processing run on your PC, and the content of your documents is not sent out.
The app's own external connections (model downloads) can be checked in network.log. Purchases and license checks through the Microsoft Store are communications by Windows, so they are not recorded there.
What Core does
Folder RAG
Point Core at a folder and it indexes the documents inside (txt / md). Ask a question and the AI answers based on your own material, citing its sources — click a source to open the original file.
Voice input with organizer cards
Speak, and Core transcribes locally. The transcript can then be shaped with one click into a summary, meeting minutes, a to-do list, or an idea memo — no audio ever leaves your machine.
AI text processing
Select any text and apply one of seven tools: summarize, proofread, rephrase, translate, extract, format, and generate questions. The result appears next to the original text — compare, then replace or copy.
The editor itself
A Monaco-based editor with tabs, split preview (Markdown / HTML / CSV / JSON), folder-wide search, grep for very large files, customizable keyboard shortcuts, automatic backups, and Shift_JIS / EUC-JP encoding support.
Try everything for 30 days
30-day full-featured trial
Every feature is available for 30 days. After the trial, the editor itself remains fully usable; continuing to use the AI features requires a full license.
One-time purchase — ¥3,950
The full license is an in-app purchase through the Microsoft Store. No subscription. It includes one year of free updates and a perpetual fallback license afterwards.
What you need
- Windows 10 / 11, 64-bit
- 16 GB RAM recommended
- 5–6 GB of free disk space
- An internet connection for the model download during setup
- A Vulkan-capable GPU speeds things up; CPU-only also works
Get OnecaratEditor Core
30-day full-featured trial · One-time purchase · No subscription