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Free network, security, coding & text tools that run entirely in your browser. No install, no sign-up; nothing you enter is sent to a server.

10015.io
TinyWow
A.Tools
IT Tools
All Over Tools
Smallpdf
iLovePDF
Imagine having 100 tools across various uses in one website.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | developk.kr | pinetools.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from South Korea · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Free online developer utilities — network, security, coding & text tools. No install, no sign-up; nothing you enter is sent to a server. 설치·회원가입 없이 브라우저에서 바로 쓰는 무료 개발자 유틸리티 모음 (네트워크·보안·코딩·텍스트 61개 도구). 입력값 서버 전송 없음.
No description of Pine Tools yet.
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevelopK.kr and Pine Tools.
DevelopK.kr's answer
developk.kr offers 61 free developer tools you can use instantly in your browser, no sign-up required. All processing happens client-side, so nothing you type is sent to a server. The tools are organized into 4 categories (network, security, coding, text), and 15 written guides are included to help you use them.
DevelopK.kr's answer
Developers and engineers who run into small, repetitive tasks during their workday, things like formatting JSON, generating a hash, checking DNS records, or converting units, and want a fast browser-based tool instead of hunting through ad-heavy sites. It's also popular with solo developers and freelancers who value the no-signup, privacy-friendly approach.
DevelopK.kr's answer
developk.kr started as a single indie side project: small dev tools built one at a time to solve the maker's own recurring annoyances, like reformatting a messy JSON blob or looking up DNS records, on sites full of ads and forced sign-ups. Each tool was added because it was genuinely needed for real work, and the collection has since grown to 61 tools across 4 categories, plus 15 written guides.
DevelopK.kr's answer
Most online tool sites require sign-up, run ads, or collect your email before you can use them. developk.kr skips all of that. Because everything runs client-side in your browser, it's also safe to paste sensitive values like API responses or auth tokens without worrying about where that data goes.
DevelopK.kr's answer
developk.kr is built as static HTML/CSS/JavaScript (no backend framework), with a shared common.js handling the header, footer, and ad mounting across all tool pages. It's hosted and served through Cloudflare (Pages, with redirects handled via a Cloudflare Pages Function), and uses GA4 for analytics.
Share your experience with using DevelopK.kr and Pine Tools. For example, how are they different and which one is better?
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