Last updated: 2026-07-11
TeraBox gives 1TB of free cloud storage plus built-in AI transcription, presentation, and document tools, used by 400M+ people since its 2020 Tokyo launch.
TeraBox is a cloud storage app from Tokyo-based Flextech Inc., launched in 2020, that had grown past 400 million users by January 2025. It pairs 1TB of free storage with built-in AI tools for transcription, one-click presentation generation, and document scanning, syncing across web, Windows, macOS, iOS, and Android without a separate AI subscription.
TeraBox is a cloud storage and file backup app built by Flextech Inc., a Tokyo company founded in 2020. The service is best known for handing every signup 1TB of free storage, well above the 15GB Google Drive or 2GB Dropbox give away, and it has grown past 400 million users worldwide as of January 2025 on the strength of that offer. What separates TeraBox from a plain storage locker is the AI layer bolted on top. AI Transcribe converts recorded or live audio and video into text with automatic subtitles and summaries. An AI Presentation Maker turns a text prompt into a formatted slide deck in one step, and a bundled essay writer, paraphraser, document scanner with OCR, and AI image generator (with named styles like Snoopy, Miyazaki, and Cyberpunk) round out the productivity suite, all included without a separate AI subscription. The free plan is aimed squarely at individual users who need somewhere cheap to dump photos, videos, and backups: students, casual creators, and anyone syncing files across a phone and a laptop. It is a weaker fit for teams that need audited compliance, since TeraBox has not published a SOC 2 report and has no formal trust center, or for privacy-conscious users, since files are not protected by zero-knowledge or client-side encryption. Premium removes ads and doubles storage to 2TB starting at 2.99 USD per month in most regions, with a Premium+ tier around 3.33 USD per month and regional storage add-on packs (around 19.99 USD per year) sold separately. TeraBox runs on web, Windows, macOS, iOS, and Android, with automatic multi-device sync, though the free tier caps individual uploads at 4GB and limits deleted-file recovery to a 10-day window.
Free plan includes 1TB of storage with ads and a 4GB per-file upload cap. Premium starts around 2.99 USD/month for 2TB with faster downloads and no ads; a Premium+ tier runs around 3.33 USD/month in some regions. Separate regional storage add-on packs are priced near 19.99 USD/year. Exact pricing varies by country.
TeraBox is a cloud storage and file backup app made by Flextech Inc., a company headquartered in Tokyo and founded in 2020. It gives every new account 1TB of free storage for photos, videos, and documents, then layers on a set of AI productivity tools including transcription, presentation generation, and document scanning. The service has grown to more than 400 million users worldwide as of January 2025. Files sync automatically across connected devices, and sharing works through simple links with adjustable permissions. TeraBox positions itself less as an enterprise file-sharing platform like Dropbox and more as a consumer-grade storage app with AI extras bundled in for free.
TeraBox's Free plan gives 1TB of storage but shows ads and caps individual uploads at 4GB per file. The Premium tier starts around 2.99 USD per month and expands storage to 2TB while removing ads and speeding up downloads. A Premium+ tier is priced around 3.33 USD per month in some regions, and separate regional storage add-on packs run near 19.99 USD per year. Exact pricing varies by country and currency, and TeraBox periodically runs promotional discounts on its official pricing page. There is no enterprise or team-seat pricing published, which makes it a poor fit for business procurement.
The core feature is 1TB of free cloud storage with automatic backup and multi-device sync across web, Windows, macOS, iOS, and Android. On top of storage, TeraBox bundles AI Transcribe, which turns recorded or live audio and video into text with subtitles and an automatic summary. An AI Presentation Maker builds a formatted slide deck from a single text prompt. Additional AI tools include an essay writer, a paraphraser, a document scanner with OCR, and an AI image generator with named art styles. Premium accounts add high-definition video playback, batch downloads, and online decompression of archive files.
Yes, TeraBox's Free plan is usable indefinitely and includes 1TB of storage at no cost, which is well above the 15GB Google Drive or 2GB Dropbox give away for free. The tradeoff is that the free tier shows frequent, sometimes full-screen ads, caps individual file uploads at 4GB, throttles download speeds, and limits deleted-file recovery to a 10-day window. There is no time-limited trial; the free tier is permanent, but users who need larger uploads, faster downloads, or an ad-free experience are pushed toward the paid Premium tier starting around 2.99 USD per month.
Google Drive is the better choice for anyone already inside the Google Workspace ecosystem who wants real-time collaboration through Docs and Sheets, even though its 15GB free tier is far smaller. Dropbox is the stronger pick for teams needing polished integrations with Slack, Zoom, and Microsoft Office, plus features like document signing and branded links. Privacy-focused users who want zero-knowledge encryption should look at pCloud or Sync.com instead, since TeraBox does not offer client-side encryption. TeraBox remains the best option specifically for individuals who want the largest possible free storage allowance with bundled AI tools and do not need enterprise-grade privacy guarantees.
TeraBox is best for budget-conscious individuals who need a large amount of free storage for personal photos, videos, and backups, such as students or casual content creators. A student recording lecture audio, for example, can use AI Transcribe to generate notes and subtitles without paying for a separate transcription tool. It is not well suited to businesses or teams that require audited compliance certifications, granular admin controls, or zero-knowledge encryption for sensitive data. Developers who need a documented, official REST API will also find TeraBox limiting, since it has no first-party public API.
TeraBox does not publish an official, documented public API for third-party developers. What exists instead is a scattered ecosystem of community-built tools on GitHub, such as Python gateways and Node.js libraries, that reverse-engineer TeraBox's share links to extract download URLs and file metadata, plus some third-party paid API platforms that proxy TeraBox downloads. None of these are officially supported by Flextech Inc., so integration reliability and terms-of-service compliance are not guaranteed. There is no mention of Model Context Protocol (MCP) support, and TeraBox is not positioned as a developer platform the way Dropbox or Google Drive are with their official SDKs.
TeraBox wins decisively on free storage, offering 1TB versus Google Drive's 15GB, and its bundled AI transcription and presentation tools are included at no extra cost, whereas Google's AI features increasingly sit behind a Google One AI Premium subscription. Google Drive wins on collaboration and trust: it integrates natively with Docs, Sheets, and Gmail, publishes SOC 2 and ISO 27001 certifications, and does not carry TeraBox's reputation for intrusive free-tier ads. Pick TeraBox if the priority is maximizing free storage for personal files; pick Google Drive if the priority is team collaboration, compliance, or a cleaner ad-free experience.
Cloud storage app with 1TB free space and built-in AI transcription, presentation, and document tools, used by 400M+ people since 2020.
Flextech Inc. · Free tier available