Utilities: Telegram bots

Official Yandex Translate bot: send text and get a translation with automatic language detection, or use it inline in any chat. Free, dozens of languages, strong on Russian.

All-in-one scanner and generator: point it at a photo to decode QR codes and a dozen barcode formats (UPC, EAN, Code 128 and more), or send text to create a new QR code. Free, open source, interface in nine languages including Russian.

DropMail's official bot: unlimited free disposable addresses with unlimited mailbox lifetime if you keep the chat open, forwarding, attachments and an API for automation — one of the more feature-rich temp-mail bots.

A styling-focused QR generator: send a link and get a print-ready code with custom colors, rounded modules and an optional logo — no third-party server in the middle.

A Mini App scanner that uses the phone camera through Telegram itself: point, scan, and the decoded URL, vCard, Wi-Fi or text appears instantly, with history synced to your account.

The official Telegram bot of PROMT, a veteran Russian machine-translation company: send text or forward a whole channel post to translate it across 16 languages, with automatic language detection.

Official inline formatter: type @bold and your text in any chat to send it as bold, italic or monospace without markdown syntax. Free, instant, works everywhere.

The Telegram front-end for temp-mail.io: get a random disposable inbox in one tap and watch new mail land right in the chat. Free for a 10-minute address; a paid plan adds custom domains, longer validity and API access.

The Telegram front-end for SMS-Activate, one of the largest and longest-running virtual-number marketplaces: buy a number in dozens of countries and receive the SMS code for hundreds of services, without giving up your real phone number.

Send any arithmetic expression with parentheses, like "(12+8)/4*3", and get the answer back instantly. No commands, no menus — and it already has close to 30,000 monthly users.

A free multilingual translator bot that also reads text from photos and turns vocabulary practice into quizzes — handy when a phrase, a menu photo, or a word list needs translating fast.

Quick two-way QR tool: send a link or text for an instant PNG/SVG code, or send a photo to decode one. No sign-up, and it greets you in both Russian and English.

A Telegram front-end for Wolfram Alpha's computational engine — ask it a calculation, a unit conversion or a factual question with /wolfram and get a real computed answer, not a search-result link.

A "programmable" calculator bot that understands full Python-style expressions plus the math, random, datetime, json and re modules — for anyone who wants more than basic arithmetic in a Telegram chat.

A no-frills unit converter — type something like "100 ft to m" and get an instant answer covering length, area, volume, weight, temperature, energy and speed. Free and open source.

A bilingual English/Russian unit converter with a clean category menu — pick length, weight, temperature or another category, then convert with a couple of taps or the /units command.

Tiger SMS in Telegram: virtual numbers for 200+ services across 260+ countries starting around 3 cents per activation, with a pay-only-if-it-arrives refund policy and even a shared free tier for less sensitive services.

The official Telegram bot from temp-mail.org, one of the earliest disposable-email brands online: instant throwaway address, mail delivered as chat messages, tens of thousands of monthly users.

An inline calculator — type @mathcalcbot and an expression like sin(60)*sqrt(16)/.3 in any chat, and a ready-to-send result pops up without ever opening the bot itself.

GrizzlySMS's official bot: buy a virtual number for WhatsApp, Telegram, Google and hundreds of other services with transparent, published per-country pricing, right inside Telegram.