
JSONFormatter.org
JSON Formatter & Validator
JSON Editor Online
FreeFormatter
Code Beautify JSON Validator
CodeBeautify
DevToys
JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.

stagetimer.io
Presentation Timer
Epic Timers
SessionPace
Tamora
UbiStage.de
Free Countdown Timer
Online Professional countdown timer, stopwatch, and event timer for presentations, meetings, conferences, classrooms, and workouts. Fullscreen display, real-time sync.

Which is more popular?
Based on our record, JSONLint seems to be more popular. It has been mentioned 138 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | jsonlint.com | eventtimer.io |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from the United States · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JSONLint yet.
EventTimer is a free, browser based professional event timing solution built for anyone who runs events, presentations, classes, or live productions. It works instantly in the browser with no signup, no installation, and no credit card required. At its core, EventTimer offers three timer modes...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing JSONLint and EventTimer.io.
EventTimer.io's answer:
Most countdown tools are either too basic (a single timer with no sharing) or too expensive for what they offer. EventTimer bridges that gap, it works instantly in the browser with zero signup, yet scales up to a full multi timer event manager with live synchronization across devices.
EventTimer.io's answer:
EventTimer gives you professional event timing features at no additional cost. Compared to Stagetimer, the leading paid alternative, EventTimer is 55 to 60% cheaper while offering a far more generous free tier. You get live sync, shareable presenter and audience views, embeddable website countdowns, and a full event rundown manager. No installation, no plugins, just open a browser and go.
EventTimer.io's answer:
Event organizers managing multi session agendas, educators who need classroom and exam timers, presenters keeping talks on schedule, fitness professionals running timed workouts, and livestream directors coordinating productions. It also serves anyone who just needs a quick, reliable countdown without downloading an app.
Share your experience with using JSONLint and EventTimer.io. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I've been maintaining jsonlint.com for years. It's a simple JSON validator that I enjoy hacking on every now and then. Nothing fancy, just a useful tool that developers seem to appreciate. - Source: dev.to / 8 months ago
Note: It is crucial that your batchinput.jsonl file is correctly formatted. You can use online JSON formatters and validators like jsonformatter.org or jsonlint.com to verify its integrity before proceeding. - Source: dev.to / about 1 year ago
Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / about 1 year ago
Tracking EventTimer.io since Apr 2026.
When comparing JSONLint and EventTimer.io, you can also consider the following products.

Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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Remote-controlled Countdown Timer for Professional Event & Live Video Production
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The JSON Formatter was created to help with debugging.
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Create a synchronized presentation timer room with host controls, a shareable speaker display, color warnings, and overtime tracking.
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View, edit and format JSON online
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Epic Timers: countdown or count-up on any phone, tablet, laptop, or TV, controlled from another. QR pairing, live sync, no accounts needed.
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