Free Tools

The tools split along one question: are you trying to start conversations, send into them, or measure them? The three link generators start conversations - each builds the deep link its platform actually documents, with the platform's own attribution parameter where one exists. The WhatsApp pair in the middle of the table deals with sending at scale, where Meta's template review and per-message billing decide what reaches anyone and what it costs. The last group is diagnosis and housekeeping: a silent Telegram bot, an untagged campaign, an unnamed bot. Every tool runs entirely in your browser, and each one pairs with a reference page that explains the rules the tool is applying.

Every one of these does a single job that is otherwise a twenty-minute detour through documentation. None of them requires an account, none stores what you type, and each runs in the browser tab rather than on our servers - which is the only honest way to handle a bot token or a customer's phone number.

What they are not is a substitute for reading the platform rules. A link generator cannot tell you that a WhatsApp template will be rejected for its category, and a cost calculator cannot tell you that Meta is changing service-message billing on 1 October 2026. Each tool therefore points at the reference page behind it, and those pages are where the actual rules live.

Each tool was built after watching the same avoidable failure happen repeatedly. The failures are worth knowing even if you never open the tool.

A phone number written the way humans write it. wa.me links need the full international number with no plus sign, no spaces, no brackets and no leading zero. A number that looks correct to you produces a “phone number shared via url is invalid” error for everyone outside your country. The link generator strips the formatting as you type.

A template rejected for its category, not its wording. Every source that studies Meta rejections puts category misclassification at the top - a marketing message submitted as utility. Rewriting the copy will not fix it. The template checker runs 28 of Meta's rules before you spend a review cycle finding out.

A bot that is silent because two processes are listening. A webhook and a polling process cannot both consume the same Telegram bot. The symptom is a 409 conflict and a bot that answers intermittently or not at all; the token checker calls getMe and getWebhookInfo and tells you which. If the queue is climbing, pending_update_count explains what the number means.

A campaign that arrives untagged. UTM parameters do not survive the jump into a chat thread - the click opens WhatsApp, and the query string stays behind in the browser. Attribution has to move into the message itself, which is what the campaign builder and the platform ref parameters are for.

A budget built on the wrong unit. Since July 2025 Meta bills WhatsApp per message rather than per 24-hour conversation, and rates follow the recipient's country and the template category. Modelling your own mix in the cost calculator is the only way to a number that survives contact with a real send.

WhatsApp fails at two points: template review before you send, and per-message cost once you do. Both are Meta's rules rather than your platform's, so they apply identically whichever provider you use. The WhatsApp error codes list the literal API responses with fixes, and WhatsApp limits covers messaging windows and throughput tiers. If you are still deciding whether the API costs anything at all, is the WhatsApp API free answers it without the vendor spin.

Telegram is the friendliest of the three to build on and the least forgiving about webhooks. Almost every “my bot stopped working” report traces to a webhook that returns the wrong status, a certificate Telegram will not accept, or a second consumer. The Telegram error codes and bot not responding guide cover the causes in the order they actually occur.

Messenger is constrained less by errors than by Meta's 24-hour messaging window and message tags, which decide what you may send and when. The Instagram and Messenger error codes and Messenger setup guide are the two pages worth having open.

Across all three, the deep links these tools build are only the entry point. What happens after someone taps is a conversation you have to design - which is what the template library exists for, and why the free plan is a plan rather than a trial: you can wire the link to a real flow and watch what people do with it before paying anyone.