Altar Computing
Functionality & UI
A lightweight system for capturing, connecting, and making sense of everything you discover online
Users
236
Rating
5.0
Reviews
28
7D Growth
-7|-2.88%
Signal pendingUnknownMedium-risk permissions
UI Builder – Mockup Tool
UI wireframes in Chrome. Drag sketch-style elements, resize, and screenshot easily.
Users848Current public install base
Rating5.0Store average score
Reviews12Public review volume
Manifest versionV3Extension platform version
7-day growth--Net users gained this week
7-day growth rate--Relative weekly velocity
Preview
7 assetsUI Builder – Mockup Tool Media preview
Trend
User growth trend
Review user movement across collected snapshots.
User Growth Over Time
Rating trend
7-day rating trend
View collected rating snapshots from the latest 7-day window to assess rating stability.
7-day rating change
Start
5.00
Latest
5.00
7-day rating change
--
2026年7月20日2026年7月20日
Growth overview
Daily, weekly, and monthly growth
Compare 1-day, 7-day, and 30-day net growth and growth rate.
1-day growthNo data
----7-day growthNo data
----30-day growthNo data
----Technical snapshot
Version, languages, and crawl freshness
Review publication date, version, supported languages, and crawl timestamps.
Version1.2.1
ManifestV3
Size111KiB
Languages30Deutsch / English / Indonesia +27
Published
Store updated
Last crawled
DeutschEnglishIndonesiaNederlandsTiếng ViệtTürkçedanskeestiespañolfrançaisitalianomagyar
Overview
Product summary
Review the store description, core capabilities, and common use cases.
UI Builder – Mockup Tool is a fast Web Wireframe & Web Design Tool that lets you sketch UI layouts on any live page or on a new blank page. Quickly show clients possible design changes directly on the live website, without switching tools.
🔵 Built for designers, product owners, developers and business analysts who need instant mockups without leaving the page. Drag-and-drop hand-drawn widgets, resize them smoothly, edit text in place, snap a quick screenshot, and share — all 100 % locally in your browser for rapid prototyping.
🔹 Instant wireframes – turn any site (or a blank canvas) into a playground for mockups
🔹 True WYSIWYG – change button labels, headers and colours right on the screen
🔹 Keyboard friendly – Ctrl/⌘ + C/V to duplicate, Delete to remove, Esc to cancel
🔹 Pixel-perfect exports – save the selected area as PNG or copy a screenshot to clipboard
Reviews
Recent review snapshot
Inspect the latest comments and rating distribution.
Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average5.0Average computed only from synced review bodies below
Reviews with text12Synced review bodies
Total ratings / reviews12Chrome Web Store public rating/review count
Store average score: 5.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
Related products
Similar and related extensions
Review related products from the Chrome Web Store detail page.
Visily - Screenshot Capture & Design
Tools
Easily capture app and website screenshots and turn them into fully editable wireframes in Visily.
Users
8K
Rating
4.4
Reviews
8
7D Growth
0|0%
wireframe-page
Developer Tools
Turn any website into a live wireframe
Users
1K
Rating
5.0
Reviews
4
7D Growth
0|0%
Vibesuite: Add-ons for Lovable.dev, Bolt.new, v0.app, and Figma Make
Developer Tools
FreemiumConfidence 64
Get notifications, use voice input, see remaining credits in chat, and boost productivity across Lovable, Bolt, v0, and Figma Make.
Users
549
Rating
3.9
Reviews
11
7D Growth
+46|9.15%
PostSpark - Beautiful Screenshots & Mockups
Art & Design
Create beautiful screenshots and mockups for social media and marketing needs.
Users
1K
Rating
4.7
Reviews
3
7D Growth
0|0%
Web Mockup Pro
Developer Tools
Generate full-page captures of websites in desktop, tablet, and mobile resolutions, and view them mocked up on WebMockup.pro.
Users
280
Rating
4.0
Reviews
4
7D Growth
+12|4.48%
Fast, reliable, and super useful—★★★★★ must-have!!
Интересная задумка, можно быстро накидать макет. Интуитивно понятный интерфейс, все быстро и плавно
väga mugav tööriist kiireks UI visandamiseks. kasulik igapäevatöös. Soovitan!
Really handy tool for quick wireframes and mockups right in Chrome. Easy to use, no bloat, and perfect for sketching ideas fast without opening design software. Love that it works offline and keeps everything local.
Such a cool tool! The best part is being able to immediately interact with existing web UI. Especially nice for sketching quick wireframe ideas.
Super handy tool! Great for quick wireframing and sketching ideas directly on live pages. Loved the drag-and-drop experience and how smooth everything feels. Perfect for fast client demos or product mockups — no fluff, just works. Highly recommended!
it looks good but how do i use it
Ideal for video meetings
Very intuiative !
This is an awesome tool! The blank canvas is cool, but I love that I can place elements on my existing website to try out new layouts over my current version.