Visualizes HTTP Archive (HAR) files opened locally or online. Also features JSON tree view for HAR and any structured JSON files.

Latest Version

Version
1.5.0
Update
October 28, 2021
Size
133KiB
Developer
Category
Users
10,000+
Rating
4 ★
Manifest Version
3
Web Store Status
Languages Support
English
See more
Permissions
ActiveTab
Scripting
See more

HAR/JSON viewer Extension

Embedded HAR/JSON viewer. Visualizes HTTP Archive (HAR) files opened locally or online. Also features JSON tree view for HAR and any structured JSON files. Allows to switch between HAR (if available), JSON tree and plain (original) views.
Note: In order to get this viewer working with local files you have to grant the respective permission: chrome://extensions -> HAR/JSON viewer -> Details -> Allow access to File URLs.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "HAR/JSON viewer", "description": "Visualizes HTTP Archive (HAR) files opened locally or online. Also features JSON tree view for HAR and any structured JSON files.", "version": "1.5.0", "permissions": [ "activeTab", "scripting" ], "background": { "service_worker": "background.js" }, "icons": { "16": "icon-colored-16.png", "32": "icon-colored-32.png", "64": "icon-colored-64.png", "128": "icon-colored-128.png" }, "web_accessible_resources": [ { "resources": [ "harviewer/*", "connection.js" ], "matches": [ "" ] } ], "action": { "default_icon": { "16": "icon-colored-16.png", "32": "icon-colored-32.png" }, "default_title": "HAR/JSON viewer" }}
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User reviews

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Tấn Lộc Võ (ID: 0000002704cc897a) Voted 5 ★ - Updated 08/08/2023 Compare to the HAR file viewer provided by Chrome, this one is better. The visualization shows the network logs very detailed and informative. Thank author

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Leonid Beilis (ID: 0000001ac2e55fff) Voted 5 ★ - Updated 05/09/2023 works well. instructions could saved me some time. instructions: drop har file into chrome. open extensions and a request from this plugin would show. accept it and you will view the plugin analysis.

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Kevin Brannen (ID: 00000013021edba0) Voted 1 ★ - Updated 08/04/2022 It doesn't work at all. Yes, allow access to file URLs is on. Yes, the icon is visible at the top. Loading a HAR file just shows the JSON, nothing else. Clicking the icon for this does nothing. If there's something else to do, then that needs to be in the instructions for the extension. I see 2 others having the same problem in the Support pane. I guess the extension has rotted.

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Sergey Maksimov (ID: 0000003467fbb1b3) Voted 5 ★ - Updated 07/20/2021 Nice extension, simple but powerful. Works with all JSONs, however it is most suitable for HAR files. Its visualization tool is amazing!