# Codable — Web developer tools for mobile

> Mobile front-end web developer toolkit for debugging and rendering tests. (iPhone/iPad app by Jeremy Collins.)

- Source: https://appshunter.io/ios/app/codable/id1324741659 (this page in markdown: same URL + `.md`)
- Developer: [Jeremy Collins](https://appshunter.io/developer/1324741658)
- Category: Utilities, Developer Tools
- Price: Free
- Rating: 4.33/5 from 6 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 26.4 · 6 MB
- Languages: English
- Released: 2017-12-15
- Data updated: 2026-09-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/codable/id1324741659/reviews.md

## What is Codable?

Codable is a lightweight web developer toolkit for iPhone and iPad.

Use the Safari extension to inspect pages where they already run. Select elements inline, browse the DOM tree, view HTML, inspect styles and node metadata, evaluate JavaScript, capture console output, view source, inspect resources, and review network activity. On supported devices, on-device Apple Intelligence can be used to find elements and perform edits.

The main app has three tabs for development and testing:
- Resize: a browser surface for testing responsive layouts with custom viewport width, height, scale, presets, and drag handles.
- Scratchpad: a JavaScript editor and runner with syntax coloring, code-focused keyboard shortcuts, document support, and optional Apple Intelligence assistance on supported devices.
- Extension: a small info page with instructions on how to enable the Safari extension, and a way to view a local demo page with CSS, JavaScript, resources, console logs, and network requests to try out the tools within Safari.

## Key features

- Resizable viewport for device emulation
- View pre-rendered website source
- Inspect and edit CSS
- View and execute console commands
- Structured listing of rendered nodes

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/codable/id1324741659/reviews.md

### 3/5 — Good potential for debugging on iOS

*2018-11-02*

I’m trying to get a setup where I can debug JS on an iPad Pro (I do like a challenge!) and this app is the closest I’ve come so far in finding an app that has a console. My only gripe is that it’s built for an iPhone and I would love it (and happily pay some £/$) if it supported iPad Pro 10.5 screens and had a little more advanced features.

### 3/5 — Won’t work on htaccess (or similar) pages

*2018-10-22, version 1.0.6*

This app would be more useful if it supported the htaccess login protocol. Other than this small issue it is still pretty useful.

## Frequently asked questions about Codable

### What devices does Codable support?

Codable is available for iPhone and iPod devices. It was last updated on November 16, 2020.

### Is Codable free to use?

Yes, Codable is completely free to download and use. There are no in-app purchases or advertisements.

### What is the age rating for Codable?

Codable has an age rating of 17+, indicating it is intended for mature users due to the nature of web development tools.

### How often is Codable updated?

The latest version of Codable is 1.6, which was released on November 16, 2020. Future updates will depend on developer activity.

### Can I edit CSS with Codable?

Yes, Codable allows you to edit the CSS of any listed node on a web page directly from your mobile device.

### Does Codable allow rendering tests?

Yes, Codable provides rendering testing capabilities for any web URL, optimized for smaller screens.

### What kind of debugging features does Codable offer?

Codable offers basic debugging features, including viewing console output, executing console commands, and inspecting website source and node structures.

## Version history (last 5 releases)

### 2.3 — 2026-08-27

On supported devices, natural language prompts to query data can be written and fulfilled by Apple Intelligence

### 2.2 — 2026-05-28

In this version:
- "Resize" tool now includes more device presets, pixel density control shown in the UI, and has basic user-agent switching support
- Console and "Resize" have improved display
- Safari Extension now shares theme settings with the companion app

2.0 Update notes:

Codable has been rebuilt as a modern Safari-native developer toolkit.
- New Safari Web Extension for Elements, Console, Source, Network, and Resources
- Inline element selection with DOM tree navigation, HTML, style, node, and frame details
- JavaScript console with page-context evaluation and console output capture
- Responsive Resize browser with viewport presets, drag handles, scaling, and basic tabs
- Scratchpad with syntax coloring, document picker support, DOM-capable JavaScript execution, and code keyboard shortcuts
- Optional on-device Apple Intelligence code assistance on supported devices
- Local demo page for testing the Safari extension
- New SwiftUI app interface, updated icons, launch screen, and iPad support

### 2.1 — 2026-05-23

Codable has been rebuilt as a modern Safari-native developer toolkit.

- New Safari Web Extension for Elements, Console, Source, Network, and Resources
- Inline element selection with DOM tree navigation, HTML, style, node, and frame details
- JavaScript console with page-context evaluation and console output capture
- Responsive Resize browser with viewport presets, drag handles, scaling, and basic tabs
- Scratchpad with syntax coloring, document picker support, DOM-capable JavaScript execution, and code keyboard shortcuts
- Optional on-device Apple Intelligence code assistance on supported devices
- Local demo page for testing the Safari extension
- New SwiftUI app interface, updated icons, launch screen, and iPad support

### 1.6 — 2020-11-16

- Support for the latest iPhone screen sizes
- iOS 14 optimizations

### 1.5.1 — 2020-04-09

Version 1.5.1 -- changing category to "developer tools", new website URL

Version 1.5.0 release -- not just a "bug fixes and improvements" release!

- UI revamp. Now with more "pro" colors, nicer icons, and the browser viewport drag handle system has gotten a re-do
- Improvements to accuracy of manual viewport sizing
- Updates to use the latest version of Swift and iOS 13 optimizations
- Lots of deleted code and dependencies removed

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## Related topics

[codable](https://appshunter.io/ios/topics/codable)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*