Alternatives
Products that do what lighten does
100% private, browser-based image converter
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Hello HN, I've used a lot of image converter websites to run for my daily jobs, but they required uploading my assets on their servers which I didn't like. I decided to build it myself and publish as a website for everyone to use at no cost (since the conversion happened on your browsers) I'd live to hear your thoughts about it. Cheers,
2024 · dynapik.com
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Hey HN I built ImageConverter.dev because I got tired of “free” image converter sites that force uploads, or throttle conversions. So I made a tool that runs 100% client-side — meaning your images never leave your device. It’s built for speed, simplicity, and privacy. What it does Convert images between JPG, PNG, WebP Works offline once loaded (PWA support) How it works It uses the Canvas API and WebAssembly to handle conversions directly in the browser. There’s no upload, no tracking, no server costs, and it’s fast even on mid-range devices. Why I built it I wanted an instant, no-ads,…
Oct 2025 · imageconverter.dev
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Hi HN, I’m Linn, the creator of ToolKuai (https://toolkuai.com). Like many of you, I’ve always been wary of "free" online file converters. Most of them are black boxes: you upload your private documents or images to a remote server, and you have no idea where that data ends up or how it’s being used to train models. I wanted to build a suite of tools (Video/Image compressor, OCR, AI Background Remover) that runs entirely in the browser. No files ever leave your machine. The Tech Stack To make this performant enough to rival server-side processing, I leaned heavily into modern…
Jan 2026 · toolkuai.com
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Convert files in your browser, nothing is uploaded, ever.
Jul 2026 · offlinefileconverter.com
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Hi HN, I built https://mergejpg.me – a client-side image merging tool that combines multiple JPG images directly in your browser without any server uploads. The Problem: Most image editing tools require uploading your photos to remote servers, which raises privacy concerns for sensitive documents, business presentations, or personal images. The Solution: Complete client-side processing using modern browser APIs. Your images never leave your device. Technical Details: - Built with Next.js 15 and TypeScript - Uses HTML5 Canvas API for image manipulation - Progressive loading for…
Sep 2025 · mergejpg.me
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Resize images privately in your browser. No uploads.
Jul 2026 · imageresizefree.com
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