SocialShrink is a set of creator tools that run entirely in your browser. Compress, convert, and adapt your images and videos for every social network — without uploading anything to any server. Your files never leave your device. It supports the exact formats and dimensions for Instagram (square, portrait 4:5, stories 9:16), TikTok, YouTube (thumbnail 16:9 and Shorts 9:16), X, LinkedIn, and Pinterest, generating every version from a single image in one click.
Content creators need to adapt the same image to multiple platforms, each with its own dimensions. Traditional online converters upload your photos to a server you don't control — you don't know how long they keep them or who sees them. SocialShrink was born from a simple premise: these everyday tasks shouldn't cost you your privacy. We compress with the same quality as any cloud service, but everything happens on your device.
SocialShrink is a project by Orkitech, a web development and IT consultancy studio based in Vilafranca del Penedes, Barcelona. We work on technology projects with a practical focus: tools that solve real problems, built with care and without unnecessary server or third-party dependencies.
It's not a slogan — it's an architecture decision. All processing happens in your browser using WebAssembly and the Canvas API. For video, we use FFmpeg compiled to WebAssembly — the same professional engine used by production studios, running on your device. There's no server receiving your files, no database storing them, no third party seeing them. When you close the tab, your files vanish from memory.
We process images with the browser's Canvas API and Web Workers to avoid blocking the interface. Compression uses a binary quality search engine that finds the best balance between weight and fidelity. For formats the browser doesn't natively support (like iPhone HEIC or WebP on older Safari), we use WebAssembly decoders and encoders that load on demand — only when you need them, adding no weight to startup. The tool works even without an internet connection once loaded.
Most online image tools upload your file to their server for processing. SocialShrink has no processing servers. It's not that we promise not to look at your photos — we technically can't because we never receive them. Additionally, we don't require an account, don't limit files per day, and don't add watermarks. The free version shows ads to sustain itself; the Pro version (in development) removes them and adds advanced features.