FindUtils vs Age by Serial Number

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

FindUtils compared with Age by Serial Number
Detail	FindUtils	Age by Serial Number
What it does	463 browser-based utilities for development, design, documents, calculations, and everyday tasks	Find how old a water heater, furnace or air conditioner is from its serial number
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free
Pricing	Free browser tools available with no signup required. API and MCP access requires an API key (not yet for sale; early access available via contact page).	Not given
Key features	463 browser-based tools across 15 categories JSON formatter, validator and minifier PDF tools including merger, compressor, and password protection Password and QR code generators Image compression and resizing Video editing and media conversion tools REST API with 387 endpoints MCP server with 388 tools for AI clients 250 guides and cheatsheets	Water heater serial number decoders for Bradford White, A.O. Smith, State, American, Whirlpool, Rheem, Ruud, Lochinvar Furnace and air conditioner decoders for Goodman, Amana, Lennox, Carrier, Trane, American Standard Water heater and furnace error code lookups Water heater sizing calculator for tank and tankless models Rheem water heater status light meanings Goodman furnace LED flash code reference Rinnai V53De tankless water heater code lookup Rheem tankless water heater code lookup
What makes it different	Most tools run entirely in your browser with no data upload to servers No signup or account required for core browser tools All tools designed and editorially reviewed by a named author Access tools via REST API or MCP server for automation Transparent about data handling and services used	Independent reference not affiliated with or endorsed by any manufacturer Distinguishes manufacture date from installation date and emphasizes condition and maintenance over age Covers safety guidance including gas smell warnings and professional contractor recommendations
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	50 +1 (up) since last check	1 no change since last check
Trust Flow (Majestic)	4	1
Citation Flow (Majestic)	38	17
Referring domains (Majestic)	92	4

4 details filled in for both companies.

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