Best alternatives to STL Viewer (2026)
10 Chrome extensions that do a similar job to STL Viewer, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.
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STL Viewer alternatives, compared
- 1
CAD Viewer
View CAD files and 3D models directly from your Google Drive and in your browser.
≈1K users5.0★ from 5 ratingsUpdated 9 months ago7 permissions- About 6.0× fewer users than STL Viewer
- Updated less recently
- Asks for more permissions (7 vs 0)
- 2
Docs Viewer
Easily view PDF and MS Office documents in your browser.
≈10K users3.2★ from 17 ratingsUpdated 9 months ago2 permissions- About 1.7× more users than STL Viewer
- Updated less recently
- Asks for more permissions (2 vs 0)
- 3
MD Viewer
Meet MD Viewer – a Markdown viewer that lets you instantly open .md files and render Markdown into beautifully styled HTML documents
≈3K users5.0★ from 11 ratingsUpdated 4 weeks ago5 permissions- About 2.0× fewer users than STL Viewer
- Updated more recently
- Asks for more permissions (5 vs 0)
- 4
HTML Viewer
Use HTML Viewer to view HTML with an online page-code preview and CSS inspector for website markup analysis
≈3K users4.8★ from 32 ratingsUpdated 5 months ago2 permissions- About 2.0× fewer users than STL Viewer
- Asks for more permissions (2 vs 0)
- 5
Open in PDF Viewer
Easily open desired links in a PDF viewer.
≈100K users3.2★ from 136 ratingsUpdated 8 months ago5 permissions- About 17× more users than STL Viewer
- Updated less recently
- Asks for more permissions (5 vs 0)
- 6
Easy PDF Viewer
Bring simplicity to viewing and converting PDFs right from your browser! Easy PDF Viewer enhances your browsing experience by…
≈50K usersNot rated yet3 permissions- About 8.3× more users than STL Viewer
- Asks for more permissions (3 vs 0)
- 7
Web Cache Viewer
Quickly view older or cached versions of the current webpage.
≈70K users3.2★ from 76 ratingsUpdated 20 months ago5 permissions- About 12× more users than STL Viewer
- Updated less recently
- Asks for more permissions (5 vs 0)
- 8
DjVu.js Viewer
Opens links to .djvu files. Allows opening files from a local disk. Processes <object> & <embed> tags.
≈100K users4.3★ from 53 ratingsNot updated for 2+ years5 permissions- About 17× more users than STL Viewer
- Updated less recently
- Asks for more permissions (5 vs 0)
- 9
Online MBOX Viewer
Open and manage your MBOX files effortlessly with Online MBOX Viewer, the ultimate online tool for hassle-free email preview.
≈2K usersNot rated yetNo special permissions- About 3.0× fewer users than STL Viewer
- 10
Markdown Viewer
Dark Mode • Themes • Autoreload • Mermaid Diagrams • MathJax • ToC • Syntax Highlighting
≈500K users4.3★ from 427 ratingsNot updated for 2+ years3 permissions- About 83× more users than STL Viewer
- Updated less recently
- Asks for more permissions (3 vs 0)
STL Viewer alternatives: questions
What is the best alternative to STL Viewer?
By users, the most popular alternative is Markdown Viewer with ≈500K users and a 4.3-star rating. The closest match by what it does is CAD Viewer.
Which STL Viewer alternative has the best rating?
DjVu.js Viewer has the highest rating of these alternatives with 50+ ratings: 4.3 out of 5 from 53 ratings.
How many alternatives to STL Viewer are there?
We list 10 close alternatives to STL Viewer on the Chrome Web Store, picked by what they do and ranked by how close they are.
Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.