Nanofile compresses files without uploading them. There is no upload endpoint, so every file is processed locally in your own browser tab.
One drop zone, 37 formats
Images (JPG, PNG, WEBP, GIF, TIFF, AVIF, HEIC), documents (PDF, DOCX, XLSX, PPTX, ODT), vectors (SVG, EPS), code (HTML, CSS, JS, XML, JSON), audio (MP3, WAV, OGG, FLAC, M4A, AAC), fonts and 3D assets (TTF, OTF, WOFF2, EPUB, GLB, STL), plus ZIP and CBZ creation. Format is detected by magic bytes, so mislabelled files still route correctly. Median reduction is around 68%, and up to 95% on fonts.
Why local matters
No queue, because you are not sharing a server with anyone. No account, no watermarks, no daily limits. Batch a whole folder at once and compare each result side by side before saving. It even keeps working with your wifi off after the page loads, which is the simplest proof that nothing is being sent anywhere.
Built by Convert Case Ltd, the team behind convertcase.net and vidshift.io.
