HAR/JSON viewer

How to install an extension Open in Chrome Web Store

CRX ID

bghceahjdhjncoohgobeohgnmfnooibd

Status

Live on Store

Description from extension meta

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

Image from store

Description from store

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.

Latest reviews

Amin Ashofteh Yazdi 2025-05-15: hi, after install this extension, go to chrome://extensions/, then founded related card about this (HAR/JSON viewer) and then press Details, after that in this page Turn on "Allow access to file URLs", now you can open or drag and drop file into chrome so address bar became such as this : file:///C:/Users/Amin/Downloads/something.har after that by click on extension button on right top side icon ( or in extensions menu ) you see the result, thanks alot, hope to God
emad poursina 2025-04-07: Great extension, just what i needed if it doesn't work for your local files just give it the permission in the extension setting page
Tấn Lộc Võ 2023-08-08: 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
Tấn Lộc Võ 2023-08-08: 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
Leonid Beilis 2023-05-09: 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.
Leonid Beilis 2023-05-09: 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.
Kevin Brannen 2022-08-04: 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.
Kevin Brannen 2022-08-04: 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.
Sergey Maksimov 2021-07-20: Nice extension, simple but powerful. Works with all JSONs, however it is most suitable for HAR files. Its visualization tool is amazing!
Sergey Maksimov 2021-07-20: Nice extension, simple but powerful. Works with all JSONs, however it is most suitable for HAR files. Its visualization tool is amazing!

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