`13 browser-only developer tools I use daily (no upload, no sign-up)`

Dev.to•Fri, Oct 16, 2026, 05:12 PM•2 min read

I kept pasting JSON, JWTs, and config into random online formatters and realized I had no idea what those sites did with it. So I built RVUtils: 13 everyday dev tools (JSON/XML formatter, JWT decoder, Base64, URL encoder, regex tester, MD5/SHA/HMAC hashes, UUID v4/v7, color + WCAG contrast, Unix...

Source: [Dev.to](https://dev.to/krishbusiness/13-browser-only-developer-tools-i-use-daily-no-upload-no-sign-up-1bpb)

📰 Read Full Story

This is an aggregated headline summary. For the complete report, visit the original publisher.

Continue Reading at Dev.to ↗

#tech #tools #browser #use #json #config #online #regex #tester

More Headlines

TechnologyHacker News• 4m ago

The biggest mammal of the Jurassic was a 5-pound otter

1 points, 0 comments on Hacker News

TechnologyThe Verge• 6m ago

We can finally hear some of Wu-Tang Clan’s Once Upon A Time in Shaolin album

Wu-Tang's Once Upon A Time in Shaolin album has, for the most part, been extremely difficult to listen to, but you can now hear two snippets of the album thanks to the podcast Pablo Torre Finds Out, which just published an episode all about the exclusive record.

TechnologyThe Verge• 7m ago

Tesla driver says he was asleep and using FSD when he crashed into highway patrol cars

After this horrific crash involving a Tesla driver who said he was asleep and using the driver assist mode, the California Highway Patrol warns that "Despite its name, full self-driving is not fully autonomous. Technology does not relieve drivers of their responsibility to safely operate their v...

TechnologyHacker News• 7m ago

`13 browser-only developer tools I use daily (no upload, no sign-up)`

More Headlines

The biggest mammal of the Jurassic was a 5-pound otter

We can finally hear some of Wu-Tang Clan’s Once Upon A Time in Shaolin album

Tesla driver says he was asleep and using FSD when he crashed into highway patrol cars

AI Vibe-Coding Just Hit the Video Game Industry Like an Avalanche

Publish Unreal games to the web with a single prompt

GPU-Accelerated PostGIS

More Headlines

The biggest mammal of the Jurassic was a 5-pound otter

We can finally hear some of Wu-Tang Clan&#8217;s Once Upon A Time in Shaolin album

Tesla driver says he was asleep and using FSD when he crashed into highway patrol cars

AI Vibe-Coding Just Hit the Video Game Industry Like an Avalanche

Publish Unreal games to the web with a single prompt

GPU-Accelerated PostGIS

We can finally hear some of Wu-Tang Clan’s Once Upon A Time in Shaolin album