Alosha
1,187 npm downloads a month and counting

Building privacy-first tools
powered by open source

Alosha is a software studio that improves useful open-source projects and turns them into sustainable developer products. Open source first — commercial where it counts.

Explore products Open source

The package matrix

One toolkit, many single-purpose packages — each free and open-source at its core, each with its own home. Mix and match the ones your stack needs.
PixSqueeze
Image compression API with HEIC, TIFF & camera-RAW conversion. Open-source core, hosted batch API.
For apps handling user image uploadsLive
Monitor
Playwright-based website monitoring — checks, retries, screenshots on failure, and multi-channel alerts.
For businesses & development teamsLive
Stride
Parse GPX, TCX and FIT files, compute running metrics, and render Chart.js dashboards — one API for every format.
For runners, coaches & endurance athletesLive
eu-validate
Offline EU identifier validation — checksum-accurate IBAN & BSN, VAT checksums for all 27 EU countries, and format checks for KvK. Zero dependencies.
For EU fintech, billing & complianceLive
vue-select
A maintained Vue 3 fork of the classic select/dropdown/typeahead component — grouped options, full WAI-ARIA accessibility, and native TypeScript types.
For Vue 3 teams building forms and admin UIsLive
Alosha XLSX
Modern TypeScript Excel (.xlsx) reader & writer — ESM-first, ExcelJS-compatible, with a low-memory streaming writer.
For apps that read & write spreadsheetsLive
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Alosha®How we build

Open source first, commercial where it counts.

Three steps, one arc — from a permissively-licensed core to a sustainable product, without ever closing the source.

Open source — step 01
01
Step one

Open source

We find a useful but underserved open-source project, improve it, and ship it in the open under a permissive license.

Contribute upstream or fork and rebrand — everything ships under MIT/Apache so anyone can build on it.

Trust — step 02
02
Step two

Trust

Developers adopt it, file issues, and star it. Credibility compounds in public — no marketing required.

Stars, issues, and real usage are the proof. A public record replaces a sales team.

Product — step 03
03
Step three

Product

A hosted service or premium tier turns that trust into a sustainable product, while the core stays free.

Hosting, a managed dashboard, or a pro tier — priced for teams. The open core never disappears.

The core stays free, forever. That's the deal.

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Open source is the foundation

We build trust in the open, then offer hosted tiers, priority support and custom work for teams that want them.
Support & custom workSee our open source