filespresso
Tip $1

Tiny tools for your files, right in your browser.

Convert any image to JPG or PNG, pull MP3 from a video, turn clips into GIFs, compress PDFs and images, resize pictures, and merge PDFs. All locally. No server uploads. Files stay on your device.

100% in your browser · no server uploads · files stay on your device

Image tools

Convert any image to JPG/PNG
Auto-detect format. HEIC, WebP, AVIF, GIF, BMP

Drop any image, Filespresso detects the format and converts it to JPG or PNG in your browser.

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Convert HEIC to JPG
iPhone photos to JPG or PNG

Convert HEIC photos from iPhones into JPG or PNG so they open everywhere.

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Resize & crop image
Pixel-perfect dimensions

Resize and crop images to pixel-perfect sizes for Instagram, profiles, print, and more.

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Compress images
Shrink for email or upload

Reduce image file sizes for email, uploads, or storage. JPGs, PNGs, and WebP.

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PDF tools

Compress PDFs
Shrink for email or upload

Reduce PDF file sizes for email, uploads, or storage. Keeps your PDFs readable.

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Merge PDFs
Combine into one PDF

Drop multiple PDFs, drag to reorder, then download a single merged file.

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Crop shipping label to 4×6
A4 label PDF to thermal printer size

Crop an A4 shipping label PDF from Yodel, Evri, Royal Mail and more down to a 4×6 inch label for your label printer.

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Images to PDF
JPG, PNG, HEIC into one PDF

Combine JPG, PNG, HEIC, WebP, GIF and BMP into a single PDF. One image per page, drag to reorder.

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Video tools

MP4 to MP3
Pull audio out of any video

Extract MP3 audio from MP4, MOV, WebM, and other video files in your browser.

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MP4 to GIF
Make a smooth animated GIF

Trim a clip and turn it into an animated GIF, encoded with a smart palette for sharper colors.

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Why Filespresso

  • Private by design
    Files never leave your device. Nothing is sent or stored anywhere.
  • Local-only
    Files are processed in your browser, never uploaded. Filenames and contents are never logged.
  • Independent
    Built by one developer. Tip the project if it helps you out.

Frequently asked questions

  • Do my files get uploaded to a server?

    No. HEIC conversion, compression, and merging all happen entirely in your browser. Files never leave your device.

  • What can I convert from HEIC?

    iPhone HEIC and HEIF photos can be converted to JPG (smaller, photo-friendly) or PNG (lossless). Output quality is configurable for JPG.

  • Which image formats does the auto converter accept?

    Drop HEIC, HEIF, WebP, AVIF, GIF, BMP, JPG, or PNG. Filespresso detects the format from the file itself (not the extension) and converts it to JPG or PNG locally.

  • Which video formats can I convert to MP3 or GIF?

    MP4, MOV, M4V, WebM, MKV, AVI, 3GP, and other common containers. The first conversion downloads a small WebAssembly build of FFmpeg into your browser. Later conversions are instant.

  • Why does the first video conversion take a moment?

    The video tools use FFmpeg compiled to WebAssembly. The engine is roughly 9 MB on the wire and is fetched the first time you convert. After that, your browser caches it.

  • Which image formats can I compress?

    JPEG, PNG, WebP, GIF, and BMP. Output is JPEG, WebP, or PNG depending on the format you pick.

  • How small can a PDF get?

    It depends on the PDF. Image-heavy PDFs (scans, photo albums) compress dramatically, often 80 to 95% smaller. Text-only PDFs are usually already small and may not shrink much.

  • Is there a file size limit?

    Limits come from your device, not the app. Modern laptops handle PDFs of several hundred MB. Phones and older devices may struggle with very large files because every page is loaded into memory for a moment.

  • Does it work offline?

    After the first visit, your browser keeps a copy of the app, so you can use Filespresso without an internet connection.