Avenra Tools
Practical utilities for SEO and AI search optimization — built and maintained by the Avenra team. No account, no catch.
LLMs.txt Generator
Generate a clean, spec-compliant llms.txt for any website in seconds. Free, no sign-up — paste a URL, preview, edit, and download.
Open toolMeta Tags Generator & Validator
Generate meta, Open Graph & Twitter tags — or paste a URL to audit an existing page. Live Google, Facebook & X previews with an SEO checklist. Free, no sign-up.
Open toolJSON Formatter & Validator
Beautify, minify and validate JSON with a collapsible tree view and exact error locations. 100% client-side — nothing is uploaded. Free, no sign-up.
Open toolJWT Decoder
Decode a JWT's header, payload and claims, with human-readable expiry. 100% client-side — your token is never uploaded. Free, no sign-up.
Open toolBase64 & URL Encoder / Decoder
Two-way Base64 and URL encoding with UTF-8 support, URL-safe Base64 and file-to-Base64. 100% client-side. Free, no sign-up.
Open toolUnix Timestamp Converter
Convert Unix timestamps to human dates and back — seconds or milliseconds, with local time, UTC, ISO 8601 and relative time. Live epoch clock. Free, no sign-up.
Open tool