All File Converter is a cross-platform cloud microservice designed by the AI-Robot Studio studio for the rapid transformation of files in dozens of formats directly within the Telegram messenger window.

The project solves a key problem for modern users: the need to install heavy third-party converters, endure intrusive ads on free websites, or transfer confidential documents to unverified web resources.

1. Key Capabilities and Tasks Addressed

The bot replaces an entire suite of desktop utilities and online services, ensuring instant file processing in just a few clicks:

  • One-click conversion: The user sends a file to the chat, and the bot automatically recognises its signature and offers inline buttons with the permitted target formats.
  • Over 80 supported routes: Processing office documents (Word, Excel, PowerPoint, PDF, RTF, TXT), all image formats, video files, sound tracks, e-books (EPUB, FB2, MOBI), vector graphics, fonts, and subtitles.
  • Fine-tuning quality: The ability to select the bitrate for MP3 (128, 192, 320 kbps), text encoding (UTF-8, Windows-1251), frame rate for GIFs, and image compression levels.
  • Built-in Optical Character Recognition (OCR): Quick extraction of printed text from photographs, scans, and PDF files in dozens of languages.

2. Unique Features for Telegram

The bot is designed with deep integration into Telegram platform features and offers capabilities unavailable in standard converters:

  • Transforming video into a "circle" (Video Note): Any regular video clip (MP4, MOV, AVI) is automatically cropped to a 1:1 ratio, re-encoded into a native Telegram video message, and sent as a round note.
  • Audio and video to voice message (Voice Note): Converting audio files or sound tracks from video clips into native OGG Opus format voice notes with waveform rendering and playback speed support (1.5x / 2x).
  • Audio Extraction: Instant saving of audio tracks from video clips, interviews, or lectures in MP3 format.
  • Converting animated stickers (TGS): Transforming Telegram vector stickers into widely accepted GIF, APNG, and WebP formats.

3. Service Model and Tariff Policy

The bot operates on a transparent and balanced Freemium model for comfortable daily use:

  • 🎁 5 free conversions every day: Each user receives 5 free conversions per day for files up to 20 MB in size. The limit resets automatically at midnight.
  • 💳 Affordable paid mode: For files ranging from 20 to 100 MB in size or when the daily limit is exhausted, a minimal tariff applies — just $0.02 per file plus $0.001 for each megabyte exceeding the free threshold.
  • Convenient top-up methods: Support for payments via Telegram Stars (right inside the messenger), bank cards and SBP (Lava), cryptocurrency (CryptoBot), and international Visa/Mastercard cards (Tribute).
  • Referral system and promo codes: The ability to receive bonus balance for inviting friends and activating gift codes.

4. Data Security and Storage Regulations (up to 15 minutes)

The confidentiality of user files is ensured by strict isolated processing regulations:

  • Temporary session (up to 15 minutes): Uploaded sources and ready converted files are stored in temporary isolated storage for no more than 15 minutes. This is enough time to download the result or re-convert the file into another format without resending.
  • Automatic erasure: A background cleanup daemon permanently deletes temporary files from the physical disk as soon as the 15-minute timer expires.
  • Full GDPR compliance: The bot implements /privacy commands for instant export of user data archives to JSON (Art. 20 GDPR) or complete account deletion (Art. 17 GDPR).

5. How to Start Using the Bot

The service requires no registration on websites or password entry. To convert your first file:

  • Open the bot in Telegram: @all_file_converter_bot.
  • Click the "Start" button.
  • Send any document, photo, video, or audio recording to the chat and select the desired format on the keyboard.