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Accron
All work
2026

Accron Free Online Tools

A suite of browser-based file and developer utilities covering PDF, image, data and text, all running entirely client-side.

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Disciplines

Stack

ReactViteTailwind CSSpdf-libjsPDFCanvas API

The problem

Common conversion tasks usually mean uploading private files to an unknown server. The aim was a fast, free toolset where the file never leaves the user's machine, funded by ads rather than subscriptions.

The approach

  1. 01

    Implemented every tool client-side using pdf-lib, jsPDF, mammoth and the Canvas API so uploads never touch a server.

  2. 02

    Built a shared tool shell and layout so new utilities drop in with consistent UX and SEO metadata.

  3. 03

    Covered PDF merge and conversion, image resizing, JSON/CSV/XML transformation, QR generation, hashing, diffing and bill/invoice generation.

  4. 04

    Engineered per-tool landing content, sitemaps and structured metadata for organic search acquisition.

Have something that needs building?

Tell us what you are working on. If it is a fit we will come back with scope, timeline and cost. If it is not, we will say so and point you somewhere better.