I recently tested Smash, a file transfer platform designed for sending and receiving large files without size restrictions. Here is my detailed evaluation, Smash delivers on its promise of fast, secure, and eco-friendly file transfers. The platform supports sending files of any size—from 20GB to 100GB+—via its website, mobile apps, Outlook plugin, or API. Unlike competitors like WeTransfer, which cap free users at 3GB per transfer, Smash offers unlimited file sizes and transfer volumes even in its free tier. Upload speeds are notably faster due to regional servers optimized for proximity, reducing transfer times by up to 5x compared to rivals. For businesses, features like custom branding, password protection, and temporary access links add professionalism and security. The platform’s sustainability focus stands out. Files are stored ephemerally (1-30 days for uploads, 1-365 days for drop links), and a study by Utopies found Smash reduces CO2e emissions by 90% compared to email attachments. Security is robust, with TLS/AES-256 encryption, optional password protection, and third-party audits by Synacktiv. The Outlook plugin and public API further enhance utility for teams needing seamless integration with workflows. However, Smash has minor drawbacks. The mobile app occasionally crashes during large uploads, lacks background upload capabilities, and doesn’t provide send/delivery confirmations—a pain point noted in user reviews. While the free version is generous, advanced features like file drop links and extended storage require a paid plan (€4.80/month for Pro or €12/month for Team). Some users also report slower download speeds for recipients, though this may depend on their internet connectivity. In summary, Smash excels as a flexible, eco-conscious solution for individuals and businesses prioritizing speed and security. Its unlimited free tier and transparent pricing make it a compelling alternative to WeTransfer, despite minor usability gaps in mobile functionality. For seamless large-file transfers with minimal environmental impact, Smash is a strong contender.