Kastavo
Free online tools, 100% in your browser — no server, no uploads.
Free online tools, 100% in your browser — no server, no uploads.
Free portal with PDF, image, and converter tools. Everything runs in your browser — no files are ever sent to a server. Privacy by design.
About Kastavo
Kastavo is a free online tools portal inspired by sites like TinyWow and iLovePDF, with one key difference: everything runs entirely in the user’s browser, with no backend — no file is ever uploaded to a server. It’s built for people who use PDF, image, and conversion tools regularly and care about privacy (personal documents, contracts, photos), since nothing ever leaves the device. The site is available in English, Portuguese, and Spanish.
Explore Kastavo
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See it in action
Free online tools, 100% in your browser — no server, no uploads.
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