extension ExtPose

JSON Viewer

CRX id


Description from extension meta

The most beautiful and customizable JSON/JSONP highlighter that your eyes have ever seen. Open source at https://goo.gl/fmphc7

Image from store JSON Viewer
Description from store It is a Chrome extension for printing JSON and JSONP. Notes: * This extension might crash with other JSON highlighters/formatters, you may need to disable them * To highlight local files and incognito tabs you have to manually enable these options on the extensions page * Sometimes when the plugin updates chrome leaves the old background process running and revokes some options, like the access to local files. When this happen just recheck the option that everything will work again * Works on local files (if you enable this in chrome://extensions) Features * Syntax highlighting * 27 built-in themes * Collapsible nodes * Clickable URLs (optional) * URL does not matter (the content is analysed to determine if its a JSON or not) * Inspect your json typing "json" in the console * Hot word `json-viewer` into omnibox (type `json-viewer` + TAB and paste your JSON into omnibox, hit ENTER and it will be highlighted) * Toggle button to view the raw/highlighted version * Works with numbers bigger than Number.MAX_VALUE * Option to show line numbers * Option to customize your theme * Option to customize the tab size * Option to configure a max JSON size to highlight * Option to collapse nodes from second level + Button to unfold all collapsed nodes * Option to include a header with timestamp + url * Option to allow the edition of the loaded JSON * Option to sort json by keys * Option for C-style braces and arrays * Scratch pad, a new area which you can type/paste JSON and format indefinitely using a button or key shortcut. To access type `json-viewer` + `TAB` + `scratch pad` ENTER This plugin is open source https://github.com/tulios Bugs and suggestions https://github.com/tulios/json-viewer/issues Contributors Thiago Pontes (@thiagopnts) @bluec0re @North101 Ben Hollander (@benhollander) Mehdi Bahrami (@mehdibahraami) Reimund Trost (@reimund) Ben van Enckevort (@benvan) License MIT License Any questions tweet me @tulios

Latest reviews

  • (2022-09-26) Илья: Как использовать?
  • (2022-09-22) Jean Paul Badoino: muy buena
  • (2022-08-29) Chanmax Coco (jesus2099): Nice but does not allow searching the whole content with browser's own Search in page feature. Have to use the extension's search, which is not as good (no word highlighting, etc.). Vivaldi 5 on Windows 10.
  • (2022-07-31) 至尊宝: 太棒了
  • (2022-07-20) Tina Holly: Works fine as advertised but they should have an option to disable the Cmd/Ctrl+F hijacking. I can't use the browser's built-in search feature because they hijack Cmd+F (macOS) and Ctrl+F (Windows). This should be opt-in or at least I should be able to opt-out of it as it presents a terrible user experience.
  • (2022-07-13) David Ruiz: This extension is focused, visually customizable, and carefully made
  • (2022-07-02) Felipe Lima: muito bom
  • (2022-06-28) Anthony Paz: Works fine, and I love the themes :D
  • (2022-06-13) Thiago Salles: Arrays e objetos vazios podiam ser representados apenas por {} ou [] respectivamente, sem quebrar linha e opção de expandir/esconder
  • (2022-06-03) John Castberg: The search feature kill this extension for me. It only jumps to the first instance of your search. If there are multiple results, it just highlights those results, and does not jump. So for a large json blob, finding say, the second instance of a string can't happen unless you want to go through the blob and find a highlighted match. I really like everything else about this extension, but i need to be able to effectively search, so I'll have to move on to something else.
  • (2022-05-25) 韩霞: 喜欢,url可以更加直观的分析了!thx
  • (2022-05-14) iyan cupliz: There is an option to custom style which i like the most. I have tried most of json formatter in chrome, and this is the best one.
  • (2022-05-06) Albab Riziq: Love it
  • (2022-04-29) Илья Артемов: it just works
  • (2022-04-28) Furkan Kaan: sayfayı yenileyince sayfanın en başına atıyor sacmalık cöp..
  • (2022-04-28) rohek rj: 非常好,赞赞赞
  • (2022-04-20) Иван Коромыслов: Лучший Viewer из всех что перепробовал. Да еще с настройками. Автор - крутяк с мозгами!
  • (2022-03-24) Arshia Ezati: Awesome
  • (2022-02-28) Arkadiy Shuvaev: It works fine even if the Content-Type header is not set correctly by server. Thank you got your work.
  • (2022-02-27) Long Lê Văn: Search function is stupid
  • (2022-02-22) Dmitriy U: Прекрасное расширение работает на ура. И подсветка кода есть)
  • (2022-02-05) Otto Valera (Ottovalera): Simple y efectivo
  • (2022-02-01) John Clark: God bless you for making this and having it open source. Thank you, thank you, thank you.
  • (2022-01-25) jasper zh: 希望折叠后可以显示类型,如果是数组折叠还可以显示数量,希望有这个功能
  • (2022-01-19) Alicia Yang: This is the only few json formatter extension I found that doesn't have the truncated Long value bug. The other more popular formatters all have the same bug, i.e. Longs like 1234567890123456781 will get rounded down to 1234567890123456780 by the formatter.
  • (2022-01-02) Timeox2k: Works super well, looks great and is extremely well implemented! First I thought about using FireFox because the feature was missing in Brave, now I stay with Brave. <3
  • (2021-12-30) IT Gradin: Lightweight, and love the themes, so many color options.
  • (2021-12-22) Jordan Rifaey: This works fine but it does not support syntax highlighting or collapsing. The "JSON Formatter" extension is better as it has these features.
  • (2021-12-05) Krystian Kowal: Great. Dark themes!
  • (2021-11-25) Lautaro Goijman: Lo que buscaba
  • (2021-11-14) Alexy Dumenigo Aguila: Muy útil y práctica
  • (2021-11-09) bing luo: 我安装后插件置灰 使用不了 有遇到相同情况的朋友嘛
  • (2021-11-09) 周萌萌: nice,最棒的功能是支持theme切换;
  • (2021-10-22) Julien Huang: C'est carré
  • (2021-09-29) felix liu: 数组的长度好像不能显示啊,是需要做什么设置吗?
  • (2021-09-28) Tim Holt: I've tried other viewers but this one gives you more options to customize to your liking. This extension is very very nice to have. Job well done!!!
  • (2021-09-28) Дмитрий Романов: Very awfull search by JSON. I wanna use browser search but forced to use terrible inner search.
  • (2021-09-20) Kritpong Khongcharoen: Make it much easier to read.
  • (2021-09-07) I would give it 5 stars if the configuration didn't kept resetting all over again
  • (2021-09-06) Khánh Duy: Good, i love it
  • (2021-08-13) Shakespeare Teodoro: Não mostra a quantidade de ocorrências encontradas nas buscas.
  • (2021-08-03) 김은지: Nice!!
  • (2021-07-28) Витя Чел: Дай бог здоровья разработчикам таких великолепных расширений
  • (2021-07-27) Aaron Waruszewski: This is a great app and it still works (tested). To use, open a JSON file in a Chrome tab and it will format it for you. This is for JSON Viewer version 0.18.1 running on Chrome version 92.0.4515.107
  • (2021-07-26) Joseph: I installed and tried on a local file on my computer ==> doesn't work. Maybe restart Chrome? Doesn't work. Reinstall plugin? Doesn't work. Check Json size and increase limit? Doesn't work. Open Firefox without any plugin ==> Works !
  • (2021-07-21) Yes, yes, yes!
  • (2021-07-08) 何晓猛: 主题切换真棒
  • (2021-06-01) Patrik Rufino: Eu instalei, mas depois de alterar o tema para dracula, funciona parcialmente, não fica espaçado e identado.
  • (2021-06-01) Dark theme is awesome. However the integrated search module is worse than Chrome built in search module. Please allow to disable the integrated search. It is making the search function unusable.
  • (2021-04-08) Viet Nguyen: Awesome!

Latest issues

  • (2022-09-12, v:0.18.1) Réjane Artico: Après installation de json viewer
    Bonjour, un dossier json viewer apparaît bien dans Visual Studio Code, installé sur mon PC donc, mais celui-ci ne fonctionne pas, il est notifié qu'un éditeur doit être utilisé car "il est en binaire". J'ai fait beaucoup de recherches, en vain, et si vous pouviez m'aider, ce serait formidable. Merci par avance. Réjane
  • (2022-09-07, v:0.18.1) Emma Forward: Monterey OS
    Hello! This worked great until I upgraded my MacBook Pro's OS to Monterey OS 12.1, and now I can't get it to load. Do I need to grant it access via Security & Privacy, if so, to what exactly? Thanks, Emma
  • (2022-08-01, v:0.18.1) simranprabh kaur: JSON FORMATTER
  • (2022-06-08, v:0.18.1) Inter Net: Search Engline Manipulation
    This Extension is changing the default search engine to Bing please ship instantly an update or I need to report this.
  • (2022-04-11, v:0.18.1) wu penny: help
    Can someone told me how to change background color?
  • (2021-10-19, v:0.18.1) Jonathan Franklin: Very nice extension - stupid question - how to save what I am seeing as a JSON file after viewing it.
    If I want to save what I am seeing as a JSON file, do I need to select all and copy into Notepad++ then save as text & change the file type to JSON? Or is there an easier way? Thanks.
  • (2021-09-16, v:0.18.1) gopalakrishnan c: json downloads
    while submitting the income tax returns, copies of return were downloaded. How to view the saved downloads json
  • (2021-07-19, v:0.18.1) David Hoffmann: Sorting object by keys with disabled config
    The setting for object sorting is disabled and the viewer still sorts all objects. My Object has string keys with only numbers and gets sorted in ascending order. Would be nice if you could look into this problem.
  • (2021-03-08, v:0.18.1) Cristina Ciausu: Json Viewer
    A hacker has installed this extension to my Google account. Please help me to find him and to report to the Police.
  • (2021-01-10, v:0.18.1) Shahadat Hossain: extension not works
    hello admin of json, i recently try to use your extension json viewer , but i cant do it. i dont know what the problem is. your extension can't read my site. can you please solve this problem. thank you.
  • (2020-12-23, v:0.18.1) Steffen Mantz: Request for support of mongoDB syntax extension
    Would be cool if mongoDB syntax extension of function values would be supported. Example: { "date" : ISODate("2020-12-23T23:00:00Z") } Great extension btw, thanks.
  • (2020-12-20, v:0.18.0) Peter Delchiappo: How do i use it
    I have a page of unformatted JSON but I cannot seem to convert it tinto pretty Json. How do I do this ? with json viewer
  • (2020-12-18, v:0.18.0) Tomas Smith: White Box At Bottom of Screen
    Hello, There seems to be a large white box at the bottom of the JSON, I have reinstalled multiple times and refreshed but still the same result. The only time it goes away is if the JSON is long enough to cover the entire screen. Screen Shot: https://cdn.tomdeveloper.systems/ad12e82 Thanks, Tom.
  • (2020-11-19, v:0.18.0) Jeremy Fennema: Search stopped working - Nov 2020
    It seems like the ctrl-F find/search has stopped working in the last few days. Any idea?
  • (2020-09-12, v:0.18.0) Jay Huang: Not working with local files
    I'm wondering how to get it to work with local files
  • (2020-09-04, v:0.18.0) Αιμίλιος: Make timestamps readable
    Please consider converting linux timestamps to "human" dates when displaying.
  • (2020-08-23, v:0.18.0) Jason Spruill-Jenkins: Arrow Keys
    It would be nice if the arrow keys scrolled the screen up and down when on a laptop or when using a non-wheel mouse.
  • (2020-08-10, v:0.18.0) James Hill: Bug report - newline inserted when formatting data for Chrome header "sec-ch-ua"
    Hi, I've noticed an issue with JSON Viewer when attempting to format JSON relating to a new header Chrome has introduced recently (sec-ch-ua). Specifically the JSON formatting seems to go wrong when attempting to format this JSON: { "if-none-match": "...", "sec-ch-ua": "\"\\\\Not\\\"A;Brand\";v=\"99\", \"Chromium\";v=\"84\", \"Google Chrome\";v=\"84\"", "sec-ch-ua-mobile": "..." } A newline is mistakely inserted as follows: "sec-ch-ua": "\"\\\\Not\\\"A;Brand\";v=\"99\", \"Chromium\";v=\"84\", \"GoogleChrome\";v=\"84\"", Attempting to format the same JSON in Sublime Text using Pretty JSON: Format and Sort JSON does not cause the same issue. Hopefully this helps you resolve a bug :)
  • (2020-06-01, v:0.18.0) Миша Хантер: Search box position
    The search box position should be fixed at corner of the screen.
  • (2020-05-05, v:0.18.0) Alan Wynn: Option to only show when JSON headers are sent
    Can you please add an option to only show this extension when the "application/json" header is sent? I am a PHP developer, and when I do development (usually within Laravel) I do a DD, this is a die and dump and returns text/html. For some reason your extension always kicks in, and effects the page view for debugging. So an option to only work with the headers would be amazing please.
  • (2019-09-10, v:0.18.0) Stefy Kyra: Improvements
    Hi, this is the best json viewer extension I've used so far, simple and customizable. Few things that I suggest improving: 1) the top right widgets imo should be fixed or at least should have a config so they can be fixed or not; scrolling down through a large json file is somewhat annoying to scroll back up to access the fold or source button, 2) It would be nice to have a collapse/expand button for nested objects (near the fold gutter maybe and configurable); if I want to expand/collapse a specific object with nested properties and leave the others the same can only be done manually with the fold gutter. Keep up the good work!
  • (2019-02-08, v:0.18.0) Yaraslau: Wrong url parsing
    I have an url inside of fson property with params 'platform=ios&region=us' When I open that link in new tab, then 'platform=ios&region=us' is converted into 'platform=ios®ion=us'
  • (2019-01-18, v:0.18.0) Katherine Wolf: How to use
    I installed the extension, but don't understand how to use it. When I click on the icon at the top of my browser window, I just get sent back to the store.
  • (2018-11-12, v:0.18.0) Максим Селивановских: Расширение обрабатывает не JSON
    Непонятно почему расширение вмешивается в простой html: "line1<br>line2" Content-Type: text/html; charset=utf-8 Берет и меняет строки местами, хотя JSON тут и близко нет.
  • (2018-11-09, v:0.18.0) Number of items
    It would be better json viewer to show a number of items when you unfold JSON Object. For example, when you unfold JSON Object of "movies", it now shows like this. "movies": [<->] Hopefully, it changes to something like this format below "movies": [10]
  • (2018-07-06, v:0.18.0) Richard Hanney: Getting it to work...
    Hi, Can not get it to work at all. I've tried loads of json files including reddit but nothing works. I run w10 on chrome 67. Any ideas?
  • (2018-06-05, v:0.18.0) Justin Goltermann: Great extension, but....
    I'm seeing that it adds a <pre> tag to the body of my company's web pages. I get that a <pre> tag might be necessary when rendering JSON text, but this should not be tripping when the content in question is NOT JSON text. Also, it's seriously annoying that this extension overrides Chrome's Ctrl-F shortcut for finding text in-page. DON'T DO THAT! Give it another shortcut, like Ctrl-Shift-F, instead. Other than that, I love the folding, the ability to select color schemes, line numbers & wrapping, etc.
  • (2018-06-03, v:0.18.0) Roman: Unexpected page scroll
    Hello! I have a problem with page scrolling to the very bottom on page load at this website (pages with posts), e.g. https://weblog.west-wind.com/posts/2018/May/31/Web-Code-is-a-solved-Problem-How-about-fixing-Web-UI-next When I'm turning off extension everything works normally. Please confirm & fix the bug. Thanks for the app anyway!
  • (2018-03-28, v:0.18.0) Ivan Djordjevic: Count in search
    It would be great to see how many results are found when searching.
  • (2018-03-28, v:0.18.0) Ivan Djordjevic: Count number of element in a an object
    Just like the count of elements in array, please add support to count the number of key/value in an object itself, so when you collapse the object, you can see the number of elements in it.


1,000,000 history
4.6 (984 votes)
Last update / version
2020-12-23 / 0.18.1
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