Startup Sonar
SaaS
⭐ Viability: 6/10
privacy image-processing browser-based

Privacy-focused browser-based image converter with batch processing and offline support

Published Mar 21, 2026

🔴 Problem Identified

People need to convert image formats (especially HEIC from iPhones) but don't want to upload private photos to unknown servers. Existing online converters require file uploads, raise privacy concerns, and often don't support newer formats like HEIC. Users also need batch processing capabilities for multiple images.

💡 Proposed Solution

A web application that uses WebAssembly to convert and compress images entirely in the browser. Supports multiple formats including HEIC, processes up to 200 images in batches, works offline as a PWA, and includes quality comparison tools. No uploads, accounts, or server processing required.

📊

Market Size

Large

⚙️

Difficulty

High

⏱️

Time to MVP

3-6 months

💰

Investment

Low

🔒

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Quick Overview

Target Audience

Privacy-conscious consumers, iPhone users needing HEIC conversion, photographers, content creators, and professionals handling sensitive images

Revenue Potential

$50K-$300K

Competition

Medium

Key Advantage

Complete privacy with no uploads, HEIC support, batch processing, and offline functionality that most competitors lack

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