Elysia Tools
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Structured landing pages that connect tools, samples, and workflows around one theme.
Calculators, numerics, date logic, statistics, and finance tools
Image, audio, and video processing, conversion, and optimization tools
Color, layout, graphics, visual styling, and design helper tools
Writing, cleanup, formatting, extraction, and text analysis tools
Developer utilities, networking, web debugging, and automation helpers
Format, file, archive, unit, and encoding conversion tools
Check ISBN, UPC/EAN/GTIN, and carrier tracking identifiers for supported formats and available check digits before a catalog or shipment handoff.
Preserve the original PDF hash, compare it with a trusted reference checksum, verify embedded signatures, and record certificate-chain findings without treating tool output as legal validity or proof of signer identity.
Identify likely sensitive information in PDFs, confirm findings page by page, apply human-approved redactions, and record a reviewable external-sharing decision.
Check IPv4 and IPv6 addresses, CIDR values, MAC addresses, AWS ARNs, and Docker image references before downstream processing, while keeping format evidence separate from reachability, ownership, permissions, and image availability.
Choose a meditation or relaxation route by your goal and comfort, complete one timed session, and review what happened. This is general wellness guidance, not medical or diagnostic advice, and it does not guarantee sleep or mental-health results.
Screen a gear, belt/pulley, chain/sprocket, torque, or spring-rate calculation by matching the transmission type to the known quantities. Treat every result as preliminary, not a certified design.
Generate or validate a BIP39 mnemonic or create an asymmetric key pair, then record only public material while keeping private material out of uploads, articles, and logs.
Build a controlled JWT fixture or inspect an authorized sample, then review claims, algorithms, expiry, sensitive fields, and signature evidence without confusing decoding with verification.
Derive a reviewable JSON Schema draft from representative JSON samples or XLSX rows, then inspect types, requiredness, nulls, and outliers before treating it as a contract.
Extract selected JSON fields by path, reshape the payload with JSONata, and record field-level provenance without claiming business-semantic validation.
Build consistent branded image sets with batch watermarks, borders or frames, restrained depth effects, and a final color and readability check.
Prepare an image for a fixed aspect ratio by preserving the source, adding controlled borders, reducing distracting noise lightly, and sharpening only at the intended delivery size.