Convertio vs Pillow

Convertio is a browser-based file conversion service that handles more than 300 formats and more than 25,600 conversion types. It offers tools for audio, video, images, documents, archives, presentations, fonts, and ebooks, along with OCR for scanned documents and images. Conversions run in the cloud, and most conversion types offer advanced settings; video options can include quality, aspect ratio, codec, rotation, and flipping. OCR can create editable Word, PDF, Excel, and text outputs, with up to 10 pages available before signup. Files can be selected from Google Drive, Dropbox, a URL, or a computer. Convertio says input and temporary files are deleted immediately after conversion and output files after 24 hours, with earlier manual deletion available. It supports batch conversion and offers a Conversion API and Chrome extension. Platforms listed include web, Windows, macOS, Linux, iOS, Android, and API. A free plan is available. Monthly plans range from $11.99 a month for Lite to $54 a month for Custom; annual-billing options range from 6.99 USD to $32.42 a month.

Pillow is a free, open-source Python library for opening, editing, and saving image files. It can identify and read more than 30 raster formats, while its write support is narrower and covers common interchange and presentation formats. Its documented operations include image processing, color transforms, enhancement, geometric transforms, and image sequences. Pillow supports current Linux, macOS, and Windows systems; its version 12 support table covers Python 3.10 through 3.14. The project documents installation with pip using `python3 -m pip install --upgrade Pillow`. JPEG and zlib are required by default for source builds, while WebP, JPEG 2000, color management, and complex text layout rely on additional libraries. The project flags parsing untrusted image data as its primary attack surface and recommends safeguards including format allowlists, input limits, and sandboxing. Pillow uses the MIT-CMU License. Development and technical discussions are directed to GitHub, Stack Overflow, and Gitter; the core maintainers are volunteers. Commercial support and maintenance are available through a Sonar Subscription.