{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-05-20T20:47:38.196Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"qr-code-reader","name":"QR Code Reader","url":"https://toolsly.tools/qr-code-reader"},{"slug":"qr-code-generator","name":"QR Code Generator","url":"https://toolsly.tools/qr-code-generator"},{"slug":"file-to-hex","name":"File to Hex Dump","url":"https://toolsly.tools/file-to-hex"},{"slug":"hex-to-file","name":"Hex to Binary File","url":"https://toolsly.tools/hex-to-file"},{"slug":"wifi-qr-code-generator","name":"Wi-Fi QR Code Generator","url":"https://toolsly.tools/wifi-qr-code-generator"},{"slug":"vcard-qr-code-generator","name":"vCard QR Code Generator","url":"https://toolsly.tools/vcard-qr-code-generator"},{"slug":"barcode-generator","name":"Barcode Generator","url":"https://toolsly.tools/barcode-generator"},{"slug":"base64-encode","name":"Base64 Encode","url":"https://toolsly.tools/base64-encode"}],"kind":"utility","slug":"caesar-cipher","name":"Caesar Cipher","description":"Encrypt or decrypt text with the classic Caesar shift cipher — choose any shift from -25 to 25.","longDescription":"The Caesar cipher shifts every letter by a fixed number of positions in the alphabet. Pick a positive shift to encrypt and the negative of that shift to decrypt. Case is preserved and non-letter characters pass through unchanged. Runs entirely in your browser.","category":"text","categoryName":"Text & Encoding","keywords":["caesar cipher","caesar shift cipher","caesar encoder","caesar decoder","shift cipher","caesar cipher online","caesar cipher free","letter shift cipher","classic cipher","caesar encryption","caesar decryption","alphabet shift","substitution cipher"],"badge":"Cipher","url":"https://toolsly.tools/caesar-cipher","inputs":[{"type":"text","key":"text","label":"Text","placeholder":"Hello, world!","multiline":true,"monospace":true},{"type":"number","key":"shift","label":"Shift","defaultValue":3,"min":-25,"max":25,"step":1,"help":"Positive to encrypt; negate to decrypt."}],"outputs":[{"key":"result","label":"Result","multiline":true}],"invocation":{"webUi":"https://toolsly.tools/caesar-cipher","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}