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 toolSlack Chatbot Pricing Calculator
Compare per-seat, per-resolution, per-message, and flat-fee + BYOLLM pricing at your volume — and see where the cheapest model flips as you scale.
Last verified 16 June 2026 · Quarterly 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 toolWhatsApp Template Approval Predictor
Lint your WhatsApp template draft against Meta's documented rejection triggers before you submit: score, blockers, and the exact fixes.
Last verified 7 July 2026 · Quarterly refreshOpen tool
Business case
Chatbot ROI Calculator
Project 3-year chatbot savings + payback period with linear ramp-up and sensitivity analysis on deflection assumptions.
Last verified 26 May 2026 · Quarterly refreshOpen toolChatbot CSAT Calculator
Turn raw survey counts into a CSAT score with a 95% confidence interval, response-rate context, and a bot-vs-human significance test.
Last verified 14 July 2026 · Quarterly refreshOpen toolBot vs Human Cost Calculator
Price a bot-first setup against an all-human baseline: true cost per resolution, escalations charged to both sides, and the break-even containment rate.
Last verified 21 July 2026 · Quarterly refreshOpen toolContainment Rate Calculator
Turn raw session counts into a containment rate under four definitions at once, and see how much of your dashboard number is abandonment.
Last verified 28 July 2026 · Quarterly refreshOpen toolDeflection Rate Calculator
Report deflection twice: the dashboard formula, and a measured rate from the fall in agent contacts per unit of demand. See which deflections were real.
Last verified 11 August 2026 · Quarterly refreshOpen toolLLM Token Counter
Count tokens for GPT-4o, 4.1, 5 and 3.5, then see where a chatbot turn spends them: prompt, tool schemas, retrieved chunks, replayed history.
Last verified 4 August 2026 · Quarterly refreshOpen tool
Conversation design
Chatbot Conversation Flow Simulator
Prototype intent routing in your browser: define intents + threshold, fire test messages, see exactly which branch wins and why.
Last verified 9 June 2026 · Quarterly refreshOpen toolEmail to Chatbot Script Converter
Paste a support email or canned reply and get a chat-shaped draft: short bubbles, quick-reply buttons, link buttons, and flagged merge variables.
Last verified 23 June 2026 · Quarterly refreshOpen tool
Safety & security
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.