
CyberChef
DevToys
IT Tools
iLovePDF
10015.io
Smallpdf
TinyWow
CodeBeautify
DevToolCore
SmallDevTools
DevToys
CodeSwissKnife
Cryptii
DevToys for Mac
iLovePDF
RegExr
DevToolCore is a collection of 30 free browser-based tools for developers and SEO practitioners. The JSON tools format, validate, and minify payloads. The PDF tools compress documents to exact size limits for upload portals and count words without uploading the file. Image tools hit exact KB targets for forms with size caps. SEO tools analyze meta tags, check favicon setup, measure keyword density, and preview meta descriptions as search results. QR tools create codes and decode them before you scan. Everything runs client-side in the browser, so data stays on your device, and no account is ever required.
CyberChef
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DevToolCore's answer:
Thirty utilities in one place, all running locally in the browser, with no accounts anywhere.
DevToolCore's answer:
One bookmark replaces a dozen single-purpose sites, and nothing you paste into it gets uploaded.
DevToolCore's answer:
Developers and SEO practitioners who need quick utility work without installing anything.
DevToolCore's answer:
A Java backend serving a static client. Every tool's logic runs client-side in JavaScript.
DevToolCore's answer:
It grew out of small recurring needs, cleaning up JSON or hitting a portal's PDF size cap, and a preference for tools that keep files in the browser.
DevToys - A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
SmallDevTools - Handy developer tools with a delightful interface
IT Tools - IT Tools is a free and open-source collection of handy online tools for developers & people working in IT.
iLovePDF - Premium online PDF tool set
CodeSwissKnife - Feature-packed developer toolkit. Includes text conversion, encoding, UUID generation, cryptography, color conversion, JSON/XML formatting, and more for simplified, efficient development tasks without online data transmission.
10015.io - 10015.io is an all-in-one toolbox offering many tools from various categories.