September 8, 2025
Developers building LLM-powered applications rely on a small set of dependable tools to ensure prompts are clean, data is well-formed, and security considerations are covered. This practical guide walks through how Text, Data, and Crypto tools fit into everyday workflows and help you move from prototype to production with confidence.
Base64 encoding helps safely transport binary or arbitrary data inside JSON payloads. JSON and XML formatters/validators ensure inputs and outputs adhere to expected structures, reducing errors and misinterpretations by the model. A small random-number generator is invaluable for creating test prompts and seed values. The password and htpasswd utilities help you secure endpoints and automation scripts. MD5 can be used for quick, non-cryptographic checksums when you just need to detect changes.
Example 1: Sanitize and encode input data for a prompt
// Validate JSON input
const input = '{ "user": "alice", "prompt": "Summarize the document." }';
const valid = jsonFormatter.validate(input);
if (!valid.ok) throw new Error('Invalid input JSON');
// Encode data for safe transport
const encoded = base64Encode(input);
Example 2: Validate model output and reformat as JSON
// After receiving model output
const output = getModelOutput();
const parsed = jsonFormatter.parse(output);
if (!parsed.success) {
// attempt to correct or handle error
}
Want to see these tools in action? Explore our suite of developer utilities and start experimenting with a few prompts today. Show, tune, and validate your LLM workflows with confidence.