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OToolbox
Free browser-based tools - no uploads, no signups, no limits
A collection of free web tools that process everything locally in your browser. No file uploads, no signups, no daily limits. Includes an image resizer with social media presets, background remover (local AI), URL shortener with analytics, JSON/XML/CSS formatters, PDF converters, and more. Your files never touch a server. Available in 6 languages. Available in 6 languages. Built with Next.js and deployed on Vercel's edge network for instant load times worldwide.
Hey 👋 Maker here.
Quick context on what this is: OToolbox is a set of browser-based utilities where all processing happens on your device. Nothing gets uploaded anywhere.
The technical choice behind it is simple — most of these operations (resizing images, formatting JSON, generating PDFs) don't actually need a server. Your browser can handle them natively. So why send your files to someone else's computer?
So I made a set of tools where everything runs in your browser. Your files never leave your device. There's no backend processing your images or reading your JSON, it's all JavaScript running locally.
Some highlights:
- Image Resizer with presets for every social platform (Instagram, Facebook, YouTube, etc.)
- Background Remover that runs an AI model directly on your device
- URL Shortener with custom aliases, UTM builder, A/B testing, and expiration
- JSON/XML/SQL/CSS formatters for devs
- PDF tools (text-to-pdf, images-to-pdf, word-to-pdf)
It's free, no signup required, and I have no plans to add a paywall. I fund it through minimal, non-intrusive ads.
Would love to hear what tools you'd like to see added next — I'm actively building based on user suggestions. Happy to answer any questions about the tech stack too (Next.js 14, Vercel Edge, client-side WASM for the AI model).
Thanks for checking it out! 🙏
About OToolbox on Product Hunt
“Free browser-based tools - no uploads, no signups, no limits”
OToolbox was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #159 on the daily leaderboard. A collection of free web tools that process everything locally in your browser. No file uploads, no signups, no daily limits. Includes an image resizer with social media presets, background remover (local AI), URL shortener with analytics, JSON/XML/CSS formatters, PDF converters, and more. Your files never touch a server. Available in 6 languages. Available in 6 languages. Built with Next.js and deployed on Vercel's edge network for instant load times worldwide.
On the analytics side, OToolbox competes within Design Tools, Productivity and Developer Tools — topics that collectively have 1.4M followers on Product Hunt. The dashboard above tracks how OToolbox performed against the three products that launched closest to it on the same day.
Who hunted OToolbox?
OToolbox was hunted by Jose Orgueira. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of OToolbox including community comment highlights and product details, visit the product overview.
Jose Orgueira