
Raindrop.io
Instapaper
Matter
Obsidian
My Mind
Notion
Glasp
Effortlessly rediscover and organize your Kindle highlights

Claude Code
GitHub Copilot
Cursor
opencode
VS Code
OpenClaw
Claude for Desktop
Codex is a VS Code extension that allows any engineer to attach comments, questions or any kind of content to specific lines of code.
Which is more popular?
Based on our record, Readwise seems to be a lot more popular than Codex. While we know about 88 links to Readwise, we've tracked only 1 mention of Codex.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | readwise.io | usecodex.com |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Codex yet.
Walkthroughs and reviews on video.
Readwise: How to use Spaced Repetition with your books
More videos
No Codex videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Readwise and Codex. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


I imported my kindle highlights, as many others. Now I daily review some highlights (thanks to a dashboard, I am motivated). And where I didn't create highlights, as I only listened to the audiobooks, I get the...
We have no reviews of Codex yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anyway, as I reached the end of the chapter, I wanted to read my Readwise's daily recap. However, my iPhone was in other room. I didn’t want to get up; I was tired. - Source: dev.to / 4 months ago
The only highlights that Readwise retrieves semi-automatically are from the books I buy from Kindle, by going into the Readwise app and clicking a button. If I upload them to Kindle or need highlights from the Apple Books app, I have to... - Source: dev.to / almost 2 years ago
Readwise also has this feature. I get a daily email with a random assortment of highlights that have been pulled in from multiple sources (Reader, Notion, Kindle, etc.) The product benefit in their case is that it's kind of like Zapier,... - Source: Hacker News / almost 2 years ago
Our company, Codex, is live on Product Hunt now and we'd love your support via an upvote! - Source: dev.to / over 4 years ago
When comparing Readwise and Codex, you can also consider the following products.

All your articles, photos, video & content from web & apps in one place.
Compare Raindrop.io to Readwise or Codex:

Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebase—no more context switching, just breakthrough results.
Compare Claude Code to Readwise or Codex:

Instapaper is a simple tool to save web pages for reading later.
Compare Instapaper to Readwise or Codex:

Your AI pair programmer. With GitHub Copilot, get suggestions for whole lines or entire functions right inside your editor.
Compare GitHub Copilot to Readwise or Codex:

Create a feedback-focused culture in Slack with Matter!
Compare Matter to Readwise or Codex:

The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.
Compare Cursor to Readwise or Codex: