Website overview
About 1123.net
1123.net is a privacy-first collection of free online tools. Categories include Calculators (percentage, discount, age, date, time card, tip, ratio, average), Converters (length, weight, temperature, speed, area, volume, recipe), Text Tools (word counter, case converter, duplicate line remover, diff checker), Developer Tools (JSON formatter, Base64, URL encoder, timestamp converter, hash generator, regex tester), Image Tools (compress, resize, crop, QR code generator), and PDF Tools (merge, split, rotate). All processing happens client-side in JavaScript, so user data never leaves the browser. The site supports 9 interface languages: English, Japanese, German, French, Italian, Portuguese, Russian, Spanish and Chinese.
At a glance
Key features
- - 35+ tools across 6 categories (calculators, converters, text, developer, image, PDF)
- - 100% browser-local processing, no uploads or accounts
- - 9 interface languages
- - Mobile-friendly, fast static pages
Practical details
What can you use this website for?
A student converts units for homework; a developer formats JSON or generates hashes without installing anything; a user merges or splits PDFs locally without uploading files to a server.
Who is it for?
Students, office workers, developers, teachers and anyone needing quick everyday calculations, conversions, text processing or file utilities.
What to know
What makes it different?
Unlike most tool sites, nothing is ever uploaded — every calculation and file operation runs entirely in the user's browser, and the whole site is available in 9 languages.
About this listing
Information about features, pricing and suitability is supplied by the submitter, not independently verified by Zearches. Websites are screened against submission and safety rules, but inclusion is not an endorsement.
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