View Source Premier
Web Inspector & API Tool
$6.99
A powerful tool for working with HTML, JSON, API, and web code. View, analyze, and debug data on iPhone, iPad, and Mac.
A multifunctional tool for analyzing, debugging, and viewing structured data and web code — including HTML, XML, JSON, CSS, JavaScript, RSS, ATOM, and other supported formats.
The application is designed for developers and professionals who value precision, control, and efficiency.
Key features:
• Cross-platform support: iPhone, iPad, and Mac
• View code in both structured and plain text formats
• Validation and error detection for HTML, XML, and JSON
• Built-in web simulator with customizable screen sizes
• JavaScript console for interactive code testing
• HEX viewer for analyzing binary files
• Text search with regular expression support
• CSS style inspection for page elements
• HTTP request handling with flexible configuration for any scenario
• Save, edit, and re-run previous requests
• Code formatting with built-in Code Beautifier
• HTTP response analysis: headers, cookies, and response data
• Advanced copying of code fragments and structured elements
• Built-in audio playback for files detected in HTML code or opened within the app
• Open and analyze files stored on your device
The application provides full control over data analysis and streamlines everyday tasks for developers.
more I’ve been looking for HTML inspectors for iOS for a long time. Then along comes View Source Premier. It is very clear that a great deal of thought and attention went into this app. Being able to switch the user agent on Mobile?!?—THIS IS BRILLIANT! I love the DOM view and also being able to toggle the various panels. Another amazing feature, I was not expecting the level of font/control options. I can only think just a few things that keeps this from 5-stars. Since Safari does not provide the inspector on mobile—it’s 2020, why?!? 😭—It would be great to be able to pass a URL to View Source Premier from Safari’s share sheet. That saves the user from having to copy and paste. The other thing I’d like to see is a synched history between the universal apps, so that you can see the pages you were working on and where you left off. Multiple-tabs would be a nice to have. Once there is support for multiple-tags or the sharesheet, I’d also like to be able to see long-pressing/right-clicking on an element or structure to be able to open it in a new browser tab or send it to Safari.The fact that this is a universal app across iPhone/iPad/Mac is awesome. Thank you for your hard work—this is worth much more than what I paid for it—you could have easily have charged as much for all three platforms. I appreciate the great price!
Developer Response Thank you for the pleasant feedback about our work and for the recommendations we need to improve the application! We are pleased to please you, we are currently developing support for synchronization between different types of devices and the extension for browsers, as well as other additional useful features. Other recommendations we will develop in the near future.
I’ve been looking for HTML inspectors for iOS for a long time. Then along comes View Source Premier. It is very clear that a great deal of thought and attention went into this app. Being able to switch the user agent on Mobile?!?—THIS IS BRILLIANT! I love the DOM view and also being able to toggle the various panels. Another amazing feature, I was not expecting the level of font/control options. I can only think just a few things that keeps this from 5-stars. Since Safari does not provide the inspector on mobile—it’s 2020, why?!? 😭—It would be great to be able to pass a URL to View Source Premier from Safari’s share sheet. That saves the user from having to copy and paste. The other thing I’d like to see is a synched history between the universal apps, so that you can see the pages you were working on and where you left off. Multiple-tabs would be a nice to have. Once there is support for multiple-tags or the sharesheet, I’d also like to be able to see long-pressing/right-clicking on an element or structure to be able to open it in a new browser tab or send it to Safari.The fact that this is a universal app across iPhone/iPad/Mac is awesome. Thank you for your hard work—this is worth much more than what I paid for it—you could have easily have charged as much for all three platforms. I appreciate the great price!
Thank you for the pleasant feedback about our work and for the recommendations we need to improve the application! We are pleased to please you, we are currently developing support for synchronization between different types of devices and the extension for browsers, as well as other additional useful features. Other recommendations we will develop in the near future.
It's cool what it can help you debug, however, I bought the app to debug an application that runs on port 8443 but is otherwise standard https. The app only seems to support http sites on port 80 and https sites on port 443. The port is dropped from the request when trying to debug something like https[colon]//mysite[dot]com:8443/manage, which doesn't help mee do what I originally bought the app for.
Developer Response Thank you for your pleasant feedback on our work and for the recommendations necessary to improve the application!We are glad to please you, we are currently preparing for the release of a new version of the application and your recommendation will be implemented in this release.Don't forget to update in a week ;-)
It's cool what it can help you debug, however, I bought the app to debug an application that runs on port 8443 but is otherwise standard https. The app only seems to support http sites on port 80 and https sites on port 443. The port is dropped from the request when trying to debug something like https[colon]//mysite[dot]com:8443/manage, which doesn't help mee do what I originally bought the app for.
Thank you for your pleasant feedback on our work and for the recommendations necessary to improve the application!We are glad to please you, we are currently preparing for the release of a new version of the application and your recommendation will be implemented in this release.Don't forget to update in a week ;-)
This app has every feature I’ve been looking for. The developer has clearly listened to and responded to the reviews here, and the result is really something very useful. Thanks a lot!
Developer Response We sincerely thank you for your Royal feedback on our work!Your feedback warms the soul and motivates us to continue what we do.Thank you for using the app, we really appreciate it! :-)
This app has every feature I’ve been looking for. The developer has clearly listened to and responded to the reviews here, and the result is really something very useful. Thanks a lot!
We sincerely thank you for your Royal feedback on our work!Your feedback warms the soul and motivates us to continue what we do.Thank you for using the app, we really appreciate it! :-)
As web developer I never setup ssl when I start developing a project on my localhost and this app strictly need ssl and I think it’s a problem ssl is good and necessary but not for developing mode in localhost.And the second problem is this app doesn’t able to show UI
Developer Response Thanks for your feedback!And we are glad to inform you that you can run tests on localhost without SSL, for this you need to enter the address bar http://localhost.And in order to see the user interface of a web page, you need to select an HTML file in the navigation bar and click on the "Play" button (denoted by a triangle icon).
As web developer I never setup ssl when I start developing a project on my localhost and this app strictly need ssl and I think it’s a problem ssl is good and necessary but not for developing mode in localhost.And the second problem is this app doesn’t able to show UI
Thanks for your feedback!And we are glad to inform you that you can run tests on localhost without SSL, for this you need to enter the address bar http://localhost.And in order to see the user interface of a web page, you need to select an HTML file in the navigation bar and click on the "Play" button (denoted by a triangle icon).
Hello everyone!
We’ve prepared a small update for you, focused on improving stability and overall app quality. In this version, we’ve fixed bugs and made several internal improvements to ensure a smoother experience.
Thank you for your support and trust — it motivates us to keep making the app even better. Stay tuned for future updates and enjoy using the app!
8.1.1 Jun 20
Hello everyone!
We’ve prepared an update focused on improving stability and overall app quality. In this version:
• Fixed bugs
• Made several internal improvements for smoother performance
• Updated the app’s color scheme
Thank you for your support and trust — it motivates us to keep making the app better. Stay tuned for upcoming updates!
8.1 Jun 9
Hello everyone!
We’ve prepared a small update for you, focused on improving stability and overall app quality. In this version, we’ve fixed bugs and made several internal improvements to ensure a smoother experience.
Thank you for your support and trust — it motivates us to keep making the app even better. Stay tuned for future updates and enjoy using the app!
8.0.1 May 29
Hello everyone!
It’s been quite a while since our last release, but we haven’t been standing still. During this time, we’ve done a tremendous amount of work and are excited to introduce a major update that includes:
• iOS 26 support
• Window mode support
• Tab support for sessions
• Session persistence after closing the app
• HEX viewer for files with unknown types
• Built-in music player
• New interface display modes
• File and folder sorting in the navigation panel
We’ve also significantly improved existing features:
• Updated request creation form
• Completely redesigned app icons
• Updated settings panel and request history
• Improved CSS file handling
• Enhanced animation smoothness and quality
Thank you for your support and trust — it motivates us to keep making the app even better. Stay tuned for more updates and enjoy using the app!
8.0 May 27
Hello, dear users of our application!
We are pleased to announce a small update in which we have added support for iOS 17 and improved the stability of the application.
We thank you for your loyalty and trust in us. Your support helps us make our application even better. Continue to enjoy using it and look forward to further improvements in future updates!
7.3.4 09/19/2023
Dear users of our shared app, we are happy to announce a small update that has been implemented in our app! In this version, we have made improvements to make your experience of using the app even more enjoyable.
We have taken your feedback into consideration and are proud to announce that our app now supports handling requests containing untrusted certificates. This means that you will be able to use the app even when you encounter certificates that are not fully trusted or expired. We have tried to keep your data safe and maintain the usability of the app by highlighting a menu item in the settings where you can enable or disable this support.
This update also significantly improves the quality of the app. We have worked carefully on optimizations and bug fixes to make it more stable and faster. Our goal is to provide you with the best possible user experience, and we are confident that with this update you will appreciate our improvements.
We thank you for your loyalty and trust in us. Your support helps us make our app even better. Keep using it with pleasure, and look forward to more improvements in future updates!
7.3.3 08/01/2023
Dear users of our shared app, we are happy to announce a small update that has been implemented in our app! In this version, we have added localization for new languages to make our app available to even more users around the world.
We strive to make our app as user-friendly and functional as possible, and your opinion is very important to us. If you have any suggestions for improving the text, localization or any other aspects of the app, please feel free to contact our technical support. We promise to respond quickly to your requests and implement the necessary changes.
We always strive to provide you with the best experience using our app, and your support helps us make it even better! Thank you for your loyalty and trust in us.
7.3.2 07/30/2023
Hello everyone, my favorite users of the application. Especially for you, we have prepared an update that includes:
• Added support for adding images in Base64 encoding for requests to Body Data;
• Added setting to change the image compression value for encoding in Base64;
• Added support for changing settings values using keyboard input;
• Updated settings style;
• Improved the quality and stability of the application.
If you liked our general application, then you can rate it and share your pleasant feedback.
I wish you all happiness, fruitful work and health! Take care of yourself and your loved ones!
7.3.1 07/25/2023
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, productive work and peace! Take care of yourself and your loved ones!
7.3 02/27/2023
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, productive work and peace! Take care of yourself and your loved ones!
7.2.2 02/21/2023
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, productive work and peace! Take care of yourself and your loved ones!
7.2.1 02/13/2023
Hello everyone, my favorite users of the application. I congratulate you on the past Christmas and New Year! We've been working long and hard on the current version of the app and we're excited to announce new updates that include:
• Added support for focusing and switching to the style code when selecting from the properties panel;
• Added support for displaying parameter values in single quotes;
• Added a button to reload the displayed file;
• Removed support for iOS versions 11 and 12;
• Significantly improved the quality and stability of the application.
If you like our work, you can share your royal review or support us on Patreon.
I wish you all happiness, productive work and peace! Take care of yourself and your loved ones!
Special thanks to users Mavenone1 and Umbrellaumbrella for your feedback and suggestions, you make us better!
7.2 01/22/2023
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, fruitful work and health! Take care of yourself and your loved ones!
7.1.1 02/10/2022
Hello everyone, my favorite users of the application. Hope you had a really good summer! And at this time, we were working very hard on the new update, in which the following features appeared:
• Added support for getting a list of files connected to CSS files, as well as disabling them in the application settings;
• Added support for entering unique query methods;
• Added support for viewing the original text of the response in the detailed information about the request;
• Added new notifications displayed in the request log;
• Added support for the new operating system iOS and iPadOS;
• Changed the color scheme of the buttons of the editor of queries and opening files;
• Updated user settings for the application;
• Improved the quality and stability of the application.
If you like our work, you can share your Royal Feedback or support us on Patreon.
I wish you all happiness, productive work and health! Take care of yourself and your loved ones!
7.1 10/12/2021
Hello everyone, my favorite users of the application. We have prepared an update especially for you, which includes:
• Added support for scaling open images;
• Added support for resizing the simulator to preset or manually set;
• Added presets for the size of the simulator;
• Added support for scaling the size of the simulator;
• Added support for moving the simulator in the workspace;
• Changed the order of switching to the inspector mode;
• Changed user settings of the web browser;
• Added intuitiveness of changing the settings for the code;
• Improved quality and stability of the application.
If you like our work, you can share your Royal Feedback or support us on Patreon.
I wish you all happiness, productive work and health! Take care of yourself and your loved ones!
7.0 05/09/2021
Hello everyone, my favorite users of the application. We have not seen each other for a long time and during this time we have prepared a small update especially for you, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, fruitful work and health! Take care of yourself and your loved ones!
6.2.2 03/11/2021
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, fruitful work and health! Take care of yourself and your loved ones!
6.2.1 02/16/2021
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, which includes:
• Added support for copying code blocks and comments to the clipboard;
• Improved the quality and stability of the application.
If you liked our work, you can share your nice feedback or support us on Patreon.
In honor of February 14, we have prepared five gifts for our beloved users! Gifts will be waiting for you on February 14th on our social network Patreon, and we will be happy to receive feedback if you like them!
I wish you all happiness, productive work and health! Take care of yourself and your loved ones!
* Some features are only available for iOS 13.0 and above.
6.2 02/12/2021
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you liked our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, productive work and health! Take care of yourself and your loved ones!
6.1.1 01/25/2021
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, which includes:
• Added support for automatic reloading of an open document when changing the file encoding;
• Added support for clearing the entire history of requests in the application settings;
• Added support for copying code blocks contained in {}, (), "" and '' to the clipboard;
• Improved the quality and stability of the application.
If you liked our work, you can share your nice feedback or support us on Patreon.
I wish you all happiness, productive work and health! Take care of yourself and your loved ones!
* Some functions are only available on operating systems from version 13.0 and higher.
6.1 01/23/2021
Hello everyone, my favorite users of the application. Especially for you, we have prepared a small update, in which we fixed bugs and improved the quality of the application.
If you like our app, please share your nice review or support us on Patreon.
I wish you a Happy New Year and wish you all happiness, productive work and health!
Take care of yourself and your loved ones!
6.0.1 01/06/2021
Hello everyone, my beloved users of the application. A lot of time has passed since the last release, but we have not been idle and during this time we have done a tremendous amount of work and prepared a big update especially for you, in which there appeared:
• Added support for opening files available in the Files application;
• Added a browser extension that allows you to view the source code of an open web page;
• Added support for opening RSS and ATOM file types;
• Added support for saving and restoring the structure of open code and files after page reloads;
• Added support for opening links in Javascript, CSS, RSS and ATOM code;
• Added setting for choosing the type of display of the code opened after loading;
• Added terminal for entering Javascript code in the web page launch mode;
• Added support for copying output information from any application panels to the clipboard;
• Added support for cascading code copying for the selected structure element;
• Added a change in the appearance of the cursor when hovering over the area of resizing panels;
• Added hotkeys for working with an external keyboard;
• Added support for saving request parameters to temporary storage if the user canceled the request form;
• Added setting for switching the type of displaying files in the navigation panel;
• Added dynamic change of the color theme of the application;
• Changed the algorithm of the buttons for navigating through the pages (buttons back and forth), now the transitions can be carried out by global transitions, and not within one page;
• Changed application icons;
• Improved application work in SlideOver mode;
• Added setting to reset default settings;
• Added new error notifications contained in the HTML code;
• Added notifications about request errors;
• Added support for adding files to the navigation bar of imported files contained in the CSS code;
• Added support for searching in the code by regular expressions;
• Changed animation of displaying or hiding panels;
• Bugs fixed and application quality improved.
If you liked our work, you can share your nice feedback or support us on Patreon.
Congratulations on all the holidays, I wish you all happiness, productive work and health!
Take care of yourself and your loved ones!
Many thanks to DAlex7777, HansDybkjaer and Lyric Traveler for your feedback and suggestions, you make us better!
* Some functions are only available on operating systems from version 13.0 and higher.
6.0 12/31/2020
Hello dear users of the application! We have prepared a small update for you, in which:
• Added support for synchronizing search history and UserAgent values with iCloud (available only for mobile operating systems version 13.0 and higher);
• Added support for opening or closing a data structure by double-taping on a structure element;
• Improved the application in Slide Over mode.
5.1 04/08/2020
Hello dear users of the application! We did a lot of work to improve the quality of the application and add new features to the application, in which:
• added support for the dark theme of the application;
• added support for launching applications running macOS;
• added the ability to save manually entered UserAgent values;
• added support for viewing a web page in the built-in web browser;
• added support for viewing connected styles for web page objects in the integrated web browser;
• added support for text search in a web browser;
• added support for transition by tags between types of code view, with the ability to disable it in the settings;
• added support for defining new types of errors for HTML and XML;
• added new settings for working with the application;
• added application loading screen;
• changed the gesture of clicking on the link to a long tap;
• optimized loading of output of large string files.
Special thanks to the users under the names "All names are taken", "darklegard", "Honinbo Shusaku", "lembi-exc", "LDaniele" and "michalcesek" for your feedback and suggestions. Thank you friends for helping the application get better!
5.0 03/25/2020
Hello dear users of the application! We have prepared an update for you in which:
• added the ability to manually change the width and height of the information panels;
• added the ability to set cookies in the request;
• added the ability to view the description of the response to the request and cookie;
• definitions of new types of errors in the source code have been added;
• added display in the log of the location of the error in the source code;
• enhanced usability of the application for iPhone.
4.0 09/25/2019
Hello everyone!
We’ve prepared a small update for you, focused on improving stability and overall app quality. In this version, we’ve fixed bugs and made several internal improvements to ensure a smoother experience.
Thank you for your support and trust — it motivates us to keep making the app even better. Stay tuned for future updates and enjoy using the app!
more Version 8.1.1 Jun 20
Data Not Linked to You The following data may be collected but it is not linked to your identity: