JSON Hero Chrome extension
A beautiful JSON explorer full of features, now in Chrome
lockrMail
Protect your inbox and optimize your browsing
Updated February 2026
| JSON Hero Chrome extension | lockrMail | |
|---|---|---|
| Rating | 4.5★ | 5.0★ |
| Reviews | 2 | 8 |
| Pros | 0 | 13 |
| FactScore™ | 21.5 | 47.7 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in JSON Hero Chrome extension — Pros
No unique pros listedBoth tools — Pros
—Only in lockrMail — Pros
Chrome extension Control over inbox Discount code notifications Easy to use Email management Automated filters Coupon code integration Loyalty program management Newsletter management No new inbox Online registration management Productivity improvement Site registration managementOnly in JSON Hero Chrome extension — Cons
—Both tools — Cons
—Only in lockrMail — Cons
—Details
| JSON Hero Chrome extension | lockrMail | |
|---|---|---|
| Categories | Chrome Extensions | Email clients, Safety and Privacy platforms, Chrome Extensions |
| Platforms | Web | Web |
| Became Popular | June 8, 2022 | May 25, 2021 |
| Website | chrome.google.com | lockrmail.com |
Who Should Pick Which?
Choose JSON Hero Chrome extension if...
- No unique pros listed
Choose lockrMail if...
- Chrome extension
- Control over inbox
- Discount code notifications
With a FactScore™ of 21.5 vs 47.7, lockrMail leads in community reception. JSON Hero Chrome extension uniquely offers No unique pros listed, while lockrMail stands out for Chrome extension and Control over inbox.
What Users Say
JSON Hero Chrome extension
Nice & fast tool. Interesting options. I would love the option to export as csv/tsv.
Best JSON Extension for chrome browser. I request if this extension auto format instead of clicking json button to view formatted data. Overall, awsome job. You worked really really amazing. Love it
lockrMail
5 Stars! I first used Lockr to filter out all the unwanted promotional emails, but the chrome extension takes the product to a whole new level. The extension conveniently populates the coupon codes...
LockrMail is a 5-star product and solution to a daily problem growing onus consumers like kudzu. There are moments I consider a) not buying from a merchant or b) stopping my browsing journey becaus...
I’ve been a supporter and user of lockrMail since day 1. I do like that it’s not necessarily a new inbox but also very excited to be able to read emails directly in the extension. Love the approach...
Related Comparisons
Frequently Asked Questions
Which is better, JSON Hero Chrome extension or lockrMail?
Based on FactScore™, lockrMail leads with a score of 47.7 vs 21.5. lockrMail has a higher rating of 5.0★ compared to 4.5★.
What are the pros of JSON Hero Chrome extension compared to lockrMail?
JSON Hero Chrome extension uniquely offers: No unique pros listed.
What are the pros of lockrMail compared to JSON Hero Chrome extension?
lockrMail uniquely offers: Chrome extension, Control over inbox, Discount code notifications, Easy to use, Email management.
Is JSON Hero Chrome extension better rated than lockrMail?
JSON Hero Chrome extension is rated 4.5★ from 2 reviews. lockrMail is rated 5.0★ from 8 reviews.
What is the FactScore™ of JSON Hero Chrome extension and lockrMail?
FactScore™ weighs rating and review volume together. JSON Hero Chrome extension scores 21.5 and lockrMail scores 47.7.
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