
Upwork
Fiverr
Freelancer.com
Toptal
Guru
PeoplePerHour
99designs
indeed
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.
Upwork
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.
Although this app, sometimes gets me to my worst... I think it's only fair to call them the best work from home site.
Based on our record, Upwork seems to be more popular. It has been mentiond 331 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.
Upwork: Great for beginners, wide variety of projects. - Source: dev.to / almost 2 years ago
If you are learning web development, goto upwork.com and start doing projects. Your old projects & code is a lot more valuable than some references from a company. Source: over 2 years ago
I just wanted to say, for anyone reading this far: this is the sort of thing you can hire a programmer to whip up for you to carry around on your phone. u/dark_rug just up and did it, but for anybody else finding themselves with a little spreadsheet to do calculations that they want to work on their phone or in the browser, you can go to a service like upwork.com and put out a request for bids from contract... Source: over 2 years ago
Hello, I'm in need of some extra money for the holidays, and looking to find freelance work. I'm a PE licensed in NC & SC. I haven't had much luck with upwork.com. I've submitted proposals to the few jobs posted in NC/SC but haven't had a proposal accepted. Source: over 2 years ago
DO NOT take job offers from Justin Hill on upwork.com, he is not real. Source: over 2 years ago
Fiverr - One marketplace, millions of professional services.
Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Freelancer.com - Search for jobs related to Www freelancer com homepage or hire on the world's largest freelancing marketplace with 12m+ jobs. It's free to sign up and bid on jobs.
GS1 US Data Hub - Data Management Platform (DMP)
Toptal - Hire the Top 3% of Freelance Talentยฎ. Toptal is an exclusive network of the top freelance software developers, designers, finance experts, product managers, and project managers in the world.
Ecommerce Tools AI - A suite of ecommerce AI tools that are trained on your information. Try free today! One click ecommerce AI tools.