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Okular VS ToolsGravity

Compare Okular VS ToolsGravity and see what are their differences

Okular

Okular is a universal document viewer based developed by KDE.

Rating
0 reviews
Alternatives Is it good?
ToolsGravity

Free AI-powered online tools for images, PDFs, text, and developers. No signup required. Files processed in your browser — privacy first.

Rating
0 reviews
Alternatives Is it good?
AeroDataBox
Aviation and flight API tailored for SMBs and individual developers, offering flight status, schedules, aircraft and airport data, statistics, historical data and more. Seamless REST/web hook integration via API marketplaces at affordable rates. sponsored

Which is more popular?

Based on our record, Okular seems to be more popular. It has been mentioned 44 times since March 2021.

social mentions
44 vs 0
PDF Tools popularity
96% vs 4%
alternatives listed
168 vs 18

Base details

Website, pricing, platforms and company facts side by side.

Okular
ToolsGravity
Website okular.kde.org toolsgravity.com
Pricing —
Official pricing
Company — Startup from India · 1 - 9 employees · 2026
Listed in
PDF Tools PDF Readers And Editors eBook Reader PDF Editor +1
Online Tools Utilities Developer Tools PDF Tools Image Tools Text Tools +3

About Okular and ToolsGravity

In their own words, as submitted to SaaSHub.

Okular
ToolsGravity

No description of Okular yet.

A free toolkit of 171 browser-based utilities — compress PDFs, convert HEIC and WebP images, remove backgrounds, OCR scans, format JSON and more. Free tools need no signup and add no watermarks, and files are deleted immediately after processing.

Read more about ToolsGravity

Features and specs

What each product offers, as listed by its team.

Okular 6 features
ToolsGravity 5 features
  • Open Source
    Okular is an open-source software, which means the source code is freely available. Users can modify and distribute it according to their needs.
  • Multi-Format Support
    Okular supports a wide array of document formats including PDF, PostScript, DjVu, CHM, XPS, ePub, and more, providing versatile document reading capabilities.
  • Cross-Platform
    Okular is available for multiple operating systems including Linux, Windows, and macOS, making it accessible to a wider range of users.
  • Annotation Tools
    It includes powerful annotation features allowing users to add notes, highlight text, and draw shapes directly on documents.
  • Customizable Interface
    The interface is highly customizable, enabling users to tweak the appearance and functionality to match their preferences.
  • Tabbed Browsing
    Okular supports tabbed browsing, allowing users to open multiple documents in a single window, enhancing multitasking.

Possible disadvantages

  • Limited Advanced PDF Editing
    While Okular provides basic annotation features, it lacks advanced PDF editing capabilities like modifying text and images within a PDF.
  • Learning Curve
    New users might find the extensive range of features and settings overwhelming, leading to a steeper learning curve compared to simpler document viewers.
  • Performance Issues
    Some users have reported performance issues when handling very large files, which can result in slower operation and responsiveness.
  • Dependency on KDE Libraries
    To get the best experience, Okular requires KDE libraries, which might not be ideal for users who prefer not to integrate KDE components into their system.
  • Mobile Support
    Okular does not have a dedicated app for mobile platforms like Android and iOS, limiting its usability on tablets and smartphones.
  • Free, browser-based access
    Sites of this type (online utility toolkits) usually run in the browser with no installation, so users can open a tool and use it immediately on any device. I could not browse the site, so check that this applies to ToolsGravity.
  • Many tools in one place
    A single hub of utilities such as converters, generators, and text or SEO helpers saves users from searching for a separate site for each small task.
  • Low barrier to entry
    Online utility sites typically need little or no registration and have simple interfaces, which suits beginners and quick one-off jobs.
  • Time-saving for routine tasks
    Automating small repetitive tasks such as formatting, converting, or generating content can save time compared with doing them manually or setting up desktop software.
  • Cross-platform convenience
    Because the tools run on the web, they work on Windows, macOS, Linux, and mobile without platform-specific software.

Possible disadvantages

  • Limited verified information
    There is little independent, verifiable information such as reviews, company background, or a track record. Users should evaluate the site themselves before relying on it for important work.
  • Privacy and data security concerns
    Uploading text, files, or other data to a third-party web tool can expose sensitive information. Users should read the privacy policy and avoid submitting confidential data unless it is clearly processed locally.
  • Possible ads and monetization clutter
    Free tool sites often rely on advertising, which can mean intrusive ads, pop-ups, or slower page loads that hurt the experience.
  • Tool depth and accuracy may vary
    Broad collections of small utilities often favor breadth over depth, so some tools may lack advanced features, customization, or consistent accuracy compared with specialized software.
  • Online dependence and no guaranteed support
    The tools need an internet connection, and there may be no API, offline mode, service guarantee, or dedicated support. Features could change or disappear without notice.

Analysis

An editorial look at what each product does well and who it suits.

Okular
ToolsGravity

Overall verdict

  • Yes, Okular is generally regarded as a good document viewer due to its features, flexibility, and open-source nature, which ensures continual updates and community support.

Why this product is good

  • Okular is considered good for several reasons: it is a versatile open-source document viewer developed by the KDE community, supporting various file formats including PDF, PostScript, and ePub. It offers a range of features such as annotation tools, form filling, text extraction, and multimedia support. Additionally, it is cross-platform, available on different operating systems like Linux, Windows, and macOS, making it accessible for a wider range of users.

Recommended for

    Okular is recommended for students, educators, professionals, and any users who require a reliable and feature-rich document viewer capable of handling a wide range of file formats. It is particularly beneficial for those who value open-source software and need robust annotation and document management tools across different platforms.

No analysis of ToolsGravity yet.

Videos

Walkthroughs and reviews on video.

Okular 3 videos + Add
ToolsGravity 0 videos + Add

okular, program for annotating your books in linux

More videos

  • - Review: Okular || Awesome PDF Viewer || Best PDF Viewer that I have tried yet.
  • - Okular Document Viewer vs Atril Document Viewer

No ToolsGravity videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Okular
ToolsGravity
96% 96%
PDF Tools
4% 4%
0% 0%
Image Tools
100% 100%
100% 100%
PDF Editor
0% 0%
100% 100%
PDF Readers And Editors
0% 0%

User comments

Share your experience with using Okular and ToolsGravity. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Okular no reviews yet
ToolsGravity no reviews yet

We have no reviews of ToolsGravity yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Okular 44 mentions
ToolsGravity 0 mentions
  • Signing PDFs
    If you mean signing as in "signing with your handwritten signature", you could use Okular () which easily allows you to do that. Filling out forms also works nicely. Source: almost 3 years ago
  • Alexandria: A minimalistic cross-platform eBook reader
    I was in a similar position lately until I found Okular. Have you tried it? https://okular.kde.org/. - Source: Hacker News / about 3 years ago
  • Help with PDF's
    I would try Okular first, though, which is free and open source: https://okular.kde.org/. Source: over 3 years ago

View more

Tracking ToolsGravity since Aug 2026.

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