Comparison

View Source Code vs JS Server

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

View Source Code

Inspect the HTML source code of any webpage directly within Safari on your iPhone or iPad. Features include syntax highlighting, powerful search, and one-tap copying. Your browsing data remains private on your device.

Highlights
  • View HTML source code in Safari
  • Syntax highlighting for HTML, CSS, JavaScript
  • Multiple color themes
  • Built-in search functionality
  • One-tap copy to clipboard
  • Privacy-focused, no data collection
  • Dark mode support
Features
Read full description

Ever wondered how a website is built? View Source Code brings the classic "View Source" feature to Safari on iPhone and iPad. INSPECT ANY WEBPAGE Tap the extension icon in Safari to instantly view the complete HTML source code of any webpage. Perfect for developers debugging issues, learning how sites are structured, or just satisfying your curiosity. BEAUTIFUL SYNTAX HIGHLIGHTING Source code is displayed with professional syntax highlighting that makes HTML, CSS, and JavaScript easy to read. Choose from 7 stunning themes including GitHub, Solarized Light, Tomorrow Night, Okaidia, and Twilight. POWERFUL SEARCH Find exactly what you're looking for with built-in search. Navigate between matches instantly with keyboard shortcuts or tap navigation. COPY WITH ONE TAP Need to grab the source? Copy the entire page source to your clipboard with a single tap. Great for sharing code snippets or saving for later analysis. PRIVACY FIRST Your browsing data stays on your device. View Source Code doesn't collect, store, or transmit any information about the websites you visit. No analytics, no tracking, no accounts. DARK MODE SUPPORT Looks great in both light and dark mode, automatically adapting to your system preferences. TRY BEFORE YOU BUY Get 5 free source views to try out all features. Love it? Unlock unlimited access with a one-time purchase. No subscriptions, no hidden fees. Perfect for: • Web developers debugging and inspecting sites • Students learning HTML, CSS, and web development • Designers checking how their work was implemented • Anyone curious about how the web works View Source Code — See how the web is built.

About

JS Server

Features
Read full description

Server turns your iPhone or iPad into a developer-friendly HTTP host. Point a listener at a file and it gets served. Write JavaScript and it runs. WHAT YOU CAN DO Serve static files Pick a file from the Files app, or edit one inline. Custom Content-Type per listener. A default HTML page is provided for quick smoke tests. Write JavaScript routes Every JavaScript listener gets an Express-like surface running inside JavaScriptCore. Register routes with server.get, server.post, server.all, and respond with res.html, res.json, res.text, res.send. Set status and headers fluently. No Node dependency. Your code evaluates on device. Read and write files from JS A sandboxed fs module is bridged through Swift: readFile, writeFile, exists, mkdir, readdir, unlink, stat. Every listener gets its own private directory. Any path that tries to escape the sandbox is rejected. Call external APIs Outbound fetch is bridged too. Pass a URL, optionally a method, headers, or a body, and get back status, ok, headers, text, and json. Perfect for proxies, webhooks, or quick integrations. Run multiple listeners at once Each listener runs on its own port, started and stopped independently. Bonjour advertises them on your local network so peers can find them by name. Live Activities A listener running in the background shows up in the Dynamic Island and on the Lock Screen with the port and request count. Inspect every request The Console panel logs every HTTP request, every console.log, and every runtime error. Tap an HTTP row to expand the full request (method, URL, headers, body) and response (status, headers, body, timing). Syntax highlighting In-app editor with an IDE-style dark theme for JavaScript, Python, and HTML. WHO IT IS FOR Developers prototyping APIs on the go. QA engineers testing mobile clients against a controllable backend. Anyone who needs to serve a JSON blob, a mock endpoint, or a small HTML page from their iPad without setting up a real server. PRIVACY No accounts, no telemetry, no analytics. Nothing leaves the device except the HTTP responses you explicitly send. All code, data, and logs live in your app sandbox. Questions or feedback: server@cyber-man.pl

Screenshots

View Source Code4 screens
JS Server4 screens

Verdict

The call

The clearest difference is price: View Source Code at Free against JS Server's $4.99. View Source Code also leads on iOS requirement (15.0 vs 17.0). JS Server's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

View Source Code is free to download; JS Server costs $4.99 up front. View Source Code sells 1 one-off in-app purchase. JS Server asks for nothing beyond the download.

Scorecard3 real differences · 7 level
View Source Code versus JS Server: the parameters behind the verdict, then further details
ParameterView Source CodeJS Server
PriceFree — better$4.99
Rating1.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequency—Daily
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperPolarity Labs Pte. Ltd.Tomasz Dbrowski

In-app purchases

1 purchases

View Source Code

One-time1
  • Lifetime$1.99
None

JS Server

No in-app purchases

Questions

Is View Source Code free?
View Source Code is free to download, with in-app purchases available.
Is JS Server free?
JS Server costs $4.99, with no in-app purchases.
Do View Source Code or JS Server have ads?
Neither View Source Code nor JS Server shows ads.

Other comparisons