Your private reading + study workspace

Turn any PDF into a hands-on course.

ishedx is where you read your own books and actually learn them. Upload a PDF, read it anywhere, and study each chapter with AI — summaries, quizzes, a design board, an in-context tutor, and a real code editor for Python, C++, CUDA & C#.

Get started →See how it works

From a PDF to real understanding, in three steps

No courses to buy and no busywork — the study tools are generated from the book in front of you.

Upload a PDF
Drag in any book or paper you own. It lands in a private library that only you can see.
Read & clip
Stream it on any device and drag a box over anything worth keeping. Snips compile into a tidy study doc.
Study actively
Every chapter unlocks summaries, quizzes, a code editor, a design board, and a tutor — all built from that chapter.

Practice code in four languages

Reading a systems, ML, or interview-prep book? Solve the chapter’s exercises in a real editor. Each language runs the safe way — and your browser only ever talks to ishedx.io.

Python

Runs instantly in your browser with Pyodide — no installs, no setup.

↳ Runs in the browser

C++

Compiled with g++ and executed in an isolated, network-free server sandbox.

↳ Sandboxed on the server

CUDA

Write GPU kernels here, then hand off in one click to Google Colab’s free GPU.

↳ One-click to Colab

C#

Compiled with Mono and run in the same locked-down sandbox as C++.

↳ Sandboxed on the server

Everything you need to learn the material

Six tools, all tied to the chapter you’re on — so studying stays connected to what you’re actually reading.

Read & snip

Stream your own PDFs and drag a box over anything to clip it. Kept snips export as a tidy PDF study doc.

Chapter summaries

Finish a chapter to unlock a faithful recap and the key takeaways — saved, so reopening is free.

Code in four languages

Exercises drawn from the chapter, solved in a real editor — Python, C++, CUDA & C#, with tiered hints.

Fresh quizzes

Ten new questions every attempt, scored instantly with per-question hints to expose the gaps.

System-design board

Sketch an architecture on a drag-and-link canvas and get a principal-level critique: strengths, gaps, tradeoffs.

Ask, in context

Chat with a tutor grounded in the exact chapter you’re reading. Code answers run or drop into the editor.

Private, safe, and easy on the eyes

Private by design.

Sign-in only and invite-based. Your library is yours — no public uploads, and family you share a book with get their own separate progress.

Safe code execution.

C++ and C# run in a locked-down, network-free sandbox, and every AI call stays server-side — keys never reach the browser.

Accessible by default.

High-contrast type, full keyboard support, and a day / night theme — WCAG AA+.