comparison · LoupeKit vs SuperDev Pro
LoupeKit vs SuperDev Pro: which one should you install?
SuperDev Pro has a comparable number of tools - fifty-plus against sixty-three - and it sells them well: one lifetime payment, three device activations, thirty-day money back, seven browsers, and no telemetry. If the argument were the count, it would win it. So this page is about what is in the two bundles rather than how big they are.
The longer tool list and seven browser builds: SuperDev Pro. Whole-page diagnostics and detection that shows its evidence: LoupeKit.
SuperDev Pro
Lifetime payment · 12,000+ developers · seven browsers
A keyboard-driven sidebar holding fifty-plus tools, eleven of them free. The span is deliberately wide: CSS inspection and a page ruler sit beside a UTM builder, a world clock, a currency converter and a set of Reddit analysers. Their roadmap says a hundred tools. For somebody replacing a drawer of single-purpose extensions, that breadth is the product.
LoupeKit
Free tier · nine surfaces · Chromium and Firefox
Sixty-three tools and diagnostics, all of them about the page in front of you, plus eight surfaces around them. Almost half of them are diagnostics rather than tools: they read the document unprompted and return a ranked list of places to look, which is a different proposition from a drawer you pick from.
Feature by feature
4 of 10 rows differ · they are the shaded onesWhere LoupeKit stops, and why
1 of the rows above · each one is a decision- General utilities (clock, currency, scraper)
- Every tool here is about the page in front of you. A currency converter in a page inspector is a bookmark with extra steps, and each one added is a row in a grid somebody has to read past to reach the tool they came for.
The same jobs, side by side
Replace a drawer of single-purpose extensions
SUPERDEV PRO What it is for, and the wider catalogue covers more of the drawer.
LOUPEKIT Covers the page-inspection half of the drawer - including the screenshot tool, which takes the viewport or the whole scrolled document - but not the utilities half.
Convert a currency, build a UTM, check a world clock
SUPERDEV PRO All three are in there.
LOUPEKIT The UTM builder is, working on the address already in the tab. The clock and the currency are not, and are not planned - neither is about the page in front of you.
Find what is wrong with a page you did not write
SUPERDEV PRO Open the tools that seem relevant and look.
LOUPEKIT Twenty-seven diagnostics scan and rank - overflow, shifts, cascade, focus order, unused bytes.
Read the technology stack
SUPERDEV PRO A site stack readout.
LOUPEKIT 1700 technologies, each with the marker, URL or header that matched.
Judge how much of a page was generated
SUPERDEV PRO Not offered.
LOUPEKIT A score out of a hundred from sixty-six heuristics, each quoting what it fired on.
Use it seriously without paying
SUPERDEV PRO Eleven of the tools are free; the rest are trial then lifetime.
LOUPEKIT Everything that reads the page is free and unmetered, plus three audits.
Pick SuperDev Pro if
If the drawer you are trying to empty has utilities in it as well as inspectors. A world clock, a currency converter and a scraper are genuinely useful and genuinely absent here - none of them is about the page in front of you, which is the line this product holds - and buying one thing instead of six is the entire argument for a bundle. Its lifetime price also buys the whole catalogue rather than a tier of it.
Pick LoupeKit if
If every tool you want is about the page in front of you, and you would rather the extension told you where to look than waited to be asked. Twenty-seven of ours scan and rank rather than sitting in a menu, and none of the others detect what a page is built with in a way that shows its working, or score how much of it reads as generated.
Run both
Awkward - two sidebars competing for the same corner of the screen and the same reflex. Pick one for page work, and if you want the utilities as well, that is a real reason to pick theirs.
TWO BUILDS9 browsers
Chromelisting in reviewFirefoxlisting in reviewBravelisting in reviewOperalisting in reviewEdgelisting in review4 moreChromium browsers: Arc, Vivaldi, Chromium, Opera GXthe Chrome buildCHECKED 17 AUGUST 2026
Every figure about SuperDev Pro on this page was checked on that day against its Chrome Web Store listing and its public repository, and nothing here is quoted from a review. Where a fact is not published anywhere we can point at, the table says so rather than estimating it. Products change; if something above is out of date, write to [email protected] and it will be corrected.
SuperDev Pro and every other product name on this site are the trademarks of their own owners. LoupeKit is not affiliated with, endorsed by or sponsored by any of them.