SKALDA – privacy-first browser tools that run entirely in your browser

#webdev #productivity #privacy #showdev

I’ve started building SKALDA, a multi-brand suite of privacy-first browser tools.

Most online tools for “small” tasks — converting units, files, images, video, audio, working with PDFs, subtitles, data, and more — force you to upload files, create an account, and accept tracking. SKALDA does the opposite:

tools run locally in the browser
no logins or user accounts
no file uploads to my servers
no tracking scripts
everything localized into 62+ languages, including RTL

What exists today

UNITS – https://units.skalda.io

Scientific unit converter with:

highly customizable Smart Tab on the homepage
500+ units across many categories
smart calculators and custom units
“Units Museum” timeline + a small interactive game
bulk converter that can handle millions of values in one input (transpose, export, etc.)

FLINT – https://flint.skalda.io

File tools with:

file converter for 100+ formats across images, documents, audio, video, archives, etc.
PDF organizer (merge / split / reorder / rotate / crop / watermark)
metadata tools (inspect and clean EXIF/GPS/author and other fields)
subtitle tools (SRT/VTT, timing fixes, batch workflows)

Across SKALDA, settings and state are shared and stored locally: theme, language, ads toggle, and other preferences are synced via localStorage across all brands, with everything staying on the user’s device.

Tech side

React + TypeScript + Vite
Cloudflare Pages for hosting
Mix of open-source client-side / WASM libraries plus custom architecture and glue code
Multi-brand setup (UNITS, FLINT, etc.) built from one codebase with brand-specific entry points, layouts, and translations
i18n for 62+ languages, including RTL handling

I launched UNITS about a month ago and FLINT a few days ago. With basically no marketing (just Product Hunt and AlternativeTo), SKALDA has done around 17k unique visitors in the first month across the domain, mostly organic.

What’s next

I’m expanding SKALDA with more brands:

PIXEL – image tools
SCRIBE – writing / docs tools
DEV – developer utilities
SOLVEO or CLIP – calculators / solvers vs audio / video tools (still deciding the order)
SCOUT – search / analysis helpers