Image Filters

Photo editing tools that apply filters and adjustments typically fall into two categories: installed desktop software with steep learning curves, or online editors that require uploading your images to third-party servers. LocalForge offers a middle path. You get accessible, browser-based filters and adjustments that run entirely on your device using client-side canvas operations and Web Workers.

Available adjustments include brightness, contrast, saturation, sharpness, blur, and grayscale conversion. Each filter is applied through pixel-level manipulation using the Canvas API, with the processing offloaded to a Web Worker so your browser stays responsive. The preview updates in real time as you adjust parameters, and the final result is rendered at full resolution when you export.

The privacy case for local image filtering is straightforward. Your vacation photos, family portraits, and personal snapshots contain intimate details about your life. Uploading them to a filter service means trusting that company with visual records of your private moments. With GDPR and similar regulations placing increasing obligations on data processors, many users and organizations prefer tools that avoid creating data-handling obligations altogether. When processing happens locally, there is no data controller relationship to manage.

LocalForge filters work with JPEG, PNG, and WebP images of any resolution. Apply a single adjustment or chain multiple effects. Preview the result, then download your filtered image without it ever touching a network connection.