# Riv File Viewer — Test and preview .riv files > Preview, test, and debug .riv animation files on iOS devices. (iPhone/iPad app by Tom Acco.) - Source: https://appshunter.io/ios/app/riv-file-viewer/id6758459201 (this page in markdown: same URL + `.md`) - Developer: [Tom Acco](https://appshunter.io/developer/1855289109) - Category: Graphics & Design, Developer Tools - Price: Free - Age rating: 4+ - Requires: iOS 18.3 · 11 MB - Languages: American English - Released: 2026-02-12 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/riv-file-viewer/id6758459201/reviews.md ## What is Riv File Viewer? Riv File Viewer is a professional utility for motion designers and developers working with the .riv animation format. Built to streamline your workflow, this tool allows you to preview, test, and debug animations directly on real iOS hardware to ensure perfect rendering and performance before you ship your app. The .riv file format is created using Rive, the real-time interactive animation tool. Riv File Viewer provides a dedicated mobile environment to validate these files with precision. PREVIEW WITH CONFIDENCE Instant Loading: Open any .riv file from a URL or directly from your device. Pixel Perfect: See exactly how your animations render on iPhone and iPad screens. Offline Access: Files are stored locally, allowing you to test animations anytime, anywhere, without an internet connection. POWERFUL INTERACTIVE TESTING State Machine Support: Toggle artboards and interact with State Machines just as they would behave in a production app. Input Validation: Test all input types including booleans, numbers, triggers, and strings. Data Bindings: Interact with data bindings and enums in real time. Console Monitor: Track events, state changes, and data updates as they happen. Detailed Inspection: Use pinch-to-zoom to inspect fine details and adjust fit mode, alignment, and background settings. DESIGNED FOR YOUR WORKFLOW Quick access to recent files. Customizable background (including transparency grid). Distraction-free mode for a clean viewing experience. Intuitive interface designed by and for motion experts. PERFECT FOR Motion Designers: Validating behavior on-device. Developers: Integrating animations and checking input logic. QA Teams: Testing interactivity and performance on real hardware. ABOUT THE CREATOR Created by Tom Acco, motion designer and educator. This tool was built to bridge the gap between design and implementation for the community. DISCLAIMER Riv File Viewer is an independent third-party utility and is not affiliated with, endorsed by, or officially connected to Rive Inc. Rive and the Rive logo are trademarks of Rive Inc. All product names, logos, and brands are property of their respective owners. ## Key features - Preview .riv files from URL or device - Test state machines and input validation - Monitor console for events and data updates - Inspect animations with pinch-to-zoom - Offline access to stored files - Customizable background and distraction-free mode ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/riv-file-viewer/id6758459201/reviews.md ### 5/5 — Amazing tool! *2026-03-10* Thanks for making this!🫡 ## Frequently asked questions about Riv File Viewer ### What is Riv File Viewer? Riv File Viewer is a professional utility designed for motion designers and developers to preview, test, and debug .riv animation files directly on iOS devices. It ensures accurate rendering and performance before app deployment. ### How do I load .riv files into Riv File Viewer? You can load .riv files into Riv File Viewer instantly from a URL or directly from your device's storage. The app is designed for quick and easy access to your animation assets. ### Can I test interactive animations with Riv File Viewer? Yes, Riv File Viewer supports powerful interactive testing. You can toggle artboards, interact with State Machines, and test all input types including booleans, numbers, triggers, and strings. ### Does Riv File Viewer work offline? Yes, Riv File Viewer offers offline access. Once files are loaded, they are stored locally, allowing you to test animations anytime, anywhere, without requiring an internet connection. ### What kind of details can I inspect in Riv File Viewer? You can inspect fine details of your animations using pinch-to-zoom functionality. The app also allows you to adjust fit mode, alignment, and background settings for precise viewing. ### Is Riv File Viewer free to use? Yes, Riv File Viewer is available for free. There are no costs associated with downloading or using its core features for previewing and testing .riv files. ### What devices does Riv File Viewer support? Riv File Viewer is designed to work on iOS devices, specifically iPhones and iPads. It provides a dedicated mobile environment to validate .riv files with precision on these platforms. ### How often is Riv File Viewer updated? Riv File Viewer was last updated on February 12, 2026, with version 1.0. As a new release, it is expected to receive further updates based on user feedback and development plans. ## Version history (last 1 release) ### 1.0 — 2026-02-12 No release notes. ## More apps by Tom Acco - [WeatherBuddy: Weather App](https://appshunter.io/ios/app/weatherbuddy-weather-app/id6755653379) All apps by Tom Acco: https://appshunter.io/developer/1855289109 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*