Wren
YAYZY
Trip to Carbon
Capture
Aerial
Website Carbon Calculator
Cloverly
Treepoints
CodeClassify
Barcode & QR Code Scanner
GS1 US Data Hub
Ecommerce Tools AI
Onelinetoolstack
QR Droid
ShopSavvy
ZBar bar code reader
CodeClassify is a suite of 16 free, browser-based tools plus a deterministic REST API and downloadable CSV datasets for validating, converting and classifying product and business codes: GTIN/UPC/EAN barcode check digits, ISBN, IBAN (MOD-97), EU VAT, VIN, SSCC pallet codes, ISO 6346 containers, ABA routing numbers, and business classifications (NAICS 2022, SIC 1987, the SICโNAICS crosswalk and HS customs codes).
Every result is computed from official public standards (GS1 Mod-10, ISO 13616, U.S. Census, U.S. HTS) โ the same input always returns the same output, with no AI guessing. The free tools need no sign-up and run entirely in the browser; the API and datasets handle bulk validation and automation.
CodeClassifyNo CodeClassify videos yet. You could help us improve this page by suggesting one.
CodeClassify's answer:
E-commerce sellers & ops validating GTIN/UPC/EAN before listing on Amazon, eBay or Shopify
Developers & data engineers needing a deterministic API for bulk validation and classification
Accountants & analysts working with NAICS/SIC business codes
Logistics, customs & trade teams handling HS codes, SSCC pallets and ISO 6346 containers
Finance/fintech teams checking IBAN, EU VAT and routing numbers
CodeClassify's answer:
CodeClassify is deterministic: every result is computed from official public standards (GS1 Mod-10, ISO 13616, ISO 3779, U.S. Census NAICS/SIC, U.S. HTS), so the same input always returns the same output โ no AI guessing, no invented codes. It's also unusually broad: one place to validate, convert and classify barcodes (GTIN/UPC/EAN), ISBN, IBAN, EU VAT, VIN, SSCC, ISO 6346 containers, ABA routing numbers, and business codes (NAICS/SIC/HS) โ as free browser tools, a REST API, and downloadable datasets.
CodeClassify's answer:
CodeClassify runs on Cloudflare Pages for the static tools and Cloudflare Workers + D1 for the API and dashboard. The validation and classification logic is implemented directly from official public standards and datasets (GS1, ISO, U.S. Census, U.S. HTS). Payments are handled by Stripe, and the API is also distributed on RapidAPI.
CodeClassify's answer:
Most alternatives are single-purpose (just barcodes, or just IBAN) or AI-based classifiers that can hallucinate codes that don't exist. CodeClassify covers every major product and business code in one place, computes results from official standards (auditable and repeatable), and offers three ways to use it: free tools with no sign-up, a deterministic API for bulk and automation, and clean CSV datasets. It's built for feeds, compliance and data pipelines where "the same answer every time" matters.
CodeClassify's answer:
CodeClassify started from a simple frustration: product and business codes are everywhere, but checking them meant a dozen scattered, ad-heavy sites โ and newer "AI" tools would confidently return codes that don't exist. The goal was one clean, fast place that computes every answer from the official standard, keeps the everyday tools free and sign-up-free, and offers an API and datasets for teams that need to work at scale.
Based on our record, Wren seems to be more popular. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You can probably go to fiverr and have someone build you a website - just send them wren.co and ask how expensive it would be to create something similar. Source: about 3 years ago
If you really have it made, like you're upper middle class, you can easily afford to sequester the amount of carbon you emit yearly for not much money. My dog and I emit approx 18tons of carbon a year, which is like 3.5 times the world average. I calculated it with wren.co and I can use them to sequestor that much carbon for 60$ a month. I cant afford to do that at this stage in my life because I should be... Source: over 3 years ago
You could offset part of your past emissions on wren.co. Source: over 3 years ago
At the end of Veritasium's latest YouTube video, he does an ad spot for Wren (wren.co). Wren is a "Benefit Corporation" (legal mission is both profit and positive impact) that aims to accept your money in exchange for doing something to offset your carbon footprint. Conservation International seems to do the same thing, but they are a 501(c)3 charity (https://www.charitynavigator.org/ein/521497470). Source: almost 4 years ago
Http://wren.co (YC S19) is a literal monthly subscription to offset your carbon footprint. - Source: Hacker News / about 4 years ago
YAYZY - Track the carbon footprint of each purchase in real-time
Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Trip to Carbon - A carbon footprint calculation API for travel.
GS1 US Data Hub - Data Management Platform (DMP)
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
Ecommerce Tools AI - A suite of ecommerce AI tools that are trained on your information. Try free today! One click ecommerce AI tools.
