Free tools for chatbot teams
Interactive utilities for chatbot operators: pricing calculators for OpenAI and the WhatsApp Business API, click-to-chat link + QR generators, ROI projection, and multi-provider LLM comparison. All tools are free, work without signup, and can be embedded on your own site via iframe.
Pricing & cost
OpenAI API Pricing Calculator
Project monthly OpenAI API costs across GPT-5, GPT-4o, o1, and embeddings. Token + conversation modes, caching + batch discounts.
Last verified 26 May 2026 · Weekly refreshOpen toolWhatsApp Business API Cost Calculator
Calculate WhatsApp Business API conversation costs across 24 countries × 4 categories with the 1,000-free-service-credit policy modelled.
Last verified 26 May 2026 · Monthly refreshOpen toolLLM API Cost Calculator (multi-provider)
Compare cost-vs-quality across 6 providers × 17 models including GPT-5, Claude 4, Gemini 2.5, Mistral, Llama 4, Grok 3.
Last verified 26 May 2026 · Weekly refreshOpen tool
Messaging utilities
WhatsApp Click-to-Chat Link Generator
Generate wa.me/ click-to-chat links with prefilled messages, UTM tracking, and an embeddable «Chat on WhatsApp» button.
Last verified 26 May 2026 · On protocol changes refreshOpen toolWhatsApp QR Code Generator
Turn any phone + prefilled message into a downloadable QR code. PNG + SVG, customisable, no signup.
Last verified 26 May 2026 · On protocol changes refreshOpen tool
Business case
Drop any tool into your site.
Every tool ships with a free iframe embed snippet. The embed strips our header / footer and shows only the calculator + an attribution badge. No tracking script, no signup, no rate limit on the embed itself — limit applies per visitor IP regardless of where it's embedded. Copy the snippet from any tool page's «Embed» section.