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CloudConvert
Convertio
Free File Converter
Online Convert
FILExt
Docs Online Viewer
File Converter
Preview any file online instantly. No downloads, no installations. Support for 20,000+ file formats, 1,500+ conversion formats, and deep content extraction.

Website, pricing, platforms and company facts side by side.
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| Website | f6s.com | viewer.online |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from Germany · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CommitCat yet.
Viewer Online was built for a simple problem: opening files shouldn’t require installing random software. Most people have experienced this situation — someone sends a file, you download it, double-click it, and nothing opens. Or your computer asks for software you don’t have. Sometimes you just...
What each product offers, as listed by its team.


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Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CommitCat and Viewer.Online.
Viewer.Online's answer:
Most online file tools focus on a small number of popular formats or require users to install software, create an account, or wait for conversions to finish.
Viewer.Online is built around a different idea: open first, understand immediately.
Users can drop a file directly into the browser and instantly preview its contents without installing software or configuring anything. Viewer.Online is designed to support a very large number of file formats and uses smart content extraction to present files in a readable and useful way whenever possible.
The goal is simple: make opening files feel effortless.
Viewer.Online's answer:
Viewer.Online is a good choice for people who value speed, simplicity, and convenience.
Instead of downloading desktop software or searching for a dedicated viewer for every file type, users can quickly inspect files directly in the browser.
Reasons users may prefer Viewer.Online:
No installation required Works across desktop and mobile devices Supports a broad range of file formats Fast drag-and-drop workflow Useful for unknown or uncommon file extensions Reduces friction when quickly checking files
Viewer.Online is especially helpful when users only need to preview or inspect a file rather than fully edit it.
Viewer.Online's answer:
Viewer.Online is designed for anyone who needs fast access to files without additional software.
Primary audiences include:
Individual users opening unfamiliar files Developers and technical users inspecting data and configuration files IT professionals and support teams Students and researchers Business users receiving many document types Mobile users who cannot easily install desktop tools
The product is intended for both technical and non-technical users.
Viewer.Online's answer:
Viewer.Online started with a simple observation: opening files is still harder than it should be.
People constantly receive files they cannot immediately open because the required software is missing, unavailable on their device, or simply too heavy for a quick preview.
The idea was to create a universal place where users could upload a file and immediately understand what it contains — directly in the browser.
Viewer.Online was created to remove unnecessary steps and make file access faster, easier, and more accessible.
Viewer.Online's answer:
Viewer.Online is built using modern web technologies and a browser-first architecture focused on fast file processing and scalable delivery.
Core areas include:
Modern frontend web technologies Server-side file processing Content extraction pipelines Cloud infrastructure Secure file handling and delivery Cross-platform browser compatibility
Viewer.Online's answer:
Viewer.Online is currently growing and customer information is not publicly disclosed.
At this stage, the platform serves a broad mix of individual users, developers, technical users, and businesses.
Share your experience with using CommitCat and Viewer.Online. For example, how are they different and which one is better?