







A Chrome extension that converts household account books and reading logs saved in Notion into 10 types of graphs with one click. For Notion enthusiasts, no coding required, 2-minute setup.
Use "Request" to ask the creator to set up tip receiving.

A lightweight, free diary app that writes directly to Notion pages. With automatic date and time stamps, your timeline is perfectly organized.

Convert to Markdown/JSON in browser without uploading to conversion site Convert multiple columns from Excel/CSV to Markdown tables, JSON, and TSV without uploading. Supports Shift-JIS encoding, up to 5,000 rows. For Notion, Backlog, and GitHub. 【Operating Environment】Completely browser-based (no registration required). Input data is designed not to be sent to our servers. 【Tags】Table conversion Markdown JSON CSV Excel Shift-JIS Notion Backlog Data processing ※Screenshots to be added later

読んだ知識を使える知識に

いつでも手軽に使える永久無料の100+ツール集。ちょっと困ったときの便利アイテムです。

FormatArc is a lightweight site that processes JSON formatting, YAML conversion, and CSV conversion only within the browser. Input data is not sent to the server, and formatting and conversion can be completed on the spot.

A browser extension that measures time spent melting away on entertainment sites

A bookshelf for e-books. Consolidate e-books scattered across multiple sites in one place.

A Chrome extension that allows you to quickly create new images with AI based on images found on the web.

You can easily create PDF documents ✏️ Markdown translates directly to paper 📄 There's also a free tier 🌱 Very convenient!

Save and organize URLs at lightning speed. A memo app where you can add items with one tap from a shared sheet.

This is a Mermaid Editor-type application that can directly convert Mermaid into flowcharts and mind maps. Compared to existing editors, it allows you to freely customize the appearance and styling. As a trial, we've equipped it with Google's Built-in AI functionality, so you can output code in Mermaid format within the app. However, since this requires various setup procedures, if it's too much trouble, you can simply paste code that you've generated from ChatGPT, Gemini, or similar services directly into the app.

Save and restore work sessions on the device without breaking Chrome tab groups

This is an app that can convert .html logs output by CocoFolia into .md and .txt formats for easier viewing later. The markdown has a preview function as well. The purpose is to load logs into AI. (It's convenient for creating summaries and such.)

気軽に投票、結果はみんなで引用できるオープンデータに

A free tool that can analyze play count, likes, comments, saves, save rate, and competitor post trends just by pasting an Instagram Reel URL.


Google Drive text notepad for saving data Eliminates complex features and difficult buttons, automatically saves to the latest version at all times

When you choose one color, it generates a color palette that matches that color.

Is Japan's population not as large as I thought? The world's "now" at a glance! A pop and fun world countries data ranking 🌍✨ Check population, land area, and population density with graphs at a glance!

Instantly extract text from images and PDFs! A fully privacy-conscious AI-OCR tool

思い付いたらすぐに登録できる動画企画管理アプリ

It is a platform where you can read stories and texts written vertically, and authors can design the scope of disclosure and monetization for each work.

Niconico Video x MMD x Motion Distribution Video Collaboration

CSV/JSON/XML/TSV migration with mapping configuration. Includes validation and reporting.
Notion is convenient, but I found myself just "looking at" the data accumulated in tables and couldn't keep up with my household budget tracking either.
So I created N Graph. A "Visualize" button is added to Notion's table view, and with one click you can convert it into 10 types of charts (bar/pie/line/scatter/area/donut/radar/bubble/combo/heatmap).
No Notion API key required, no code required, no configuration required. It's all done with just a Chrome extension.
Tech stack: Vanilla TypeScript + Chart.js + Supabase (licensing) + Stripe (billing). Since the Notion public API can't retrieve the current table view state, I implemented it by reading from the DOM.
All features available for free trial. Pro version ($3/month) supports all charts + settings saving.
I'm developing this individually, so I'd be happy to receive feedback.
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