LifeFlow

LifeFlow

Apps & extensions that automate your workflow.

LifeFlow is an independent software studio building focused browser extensions and web apps that help professionals validate data, cut out repetitive steps, and get more done — privately, on their own machine.

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Independently built and maintained · Based in the United States

Our product

SellerFlow Feed Workbench

A Chrome extension that validates Walmart Marketplace JSON feed payloads locally in your browser — catching problems before you submit, without uploading your data or credentials anywhere.

SellerFlow Feed Workbench

Chrome Extension

For Walmart Marketplace sellers, agencies, and API teams. Import the item-spec schema files you obtain from the Walmart Developer Portal, and SellerFlow indexes them locally so validation stays fast and fully private.

✓JSON syntax validation with one-click pretty-print & minify
✓Walmart feed structure & product-type checks
✓Full schema-based validation: required fields, types, enums, ranges
✓GTIN/UPC/EAN check digits & duplicate SKU detection
✓Local schema import, indexing & version management
✓Batch validation across many files at once
✓CSV & JSON export of validation results
✓Safe, preview-before-apply auto-fixes
Add to Chrome Read the feed-error guides Get in touch
SellerFlow is an independent tool and is not affiliated with, endorsed by, sponsored by, or operated by Walmart Inc. Walmart, Walmart Marketplace, and related marks are trademarks of Walmart Inc. SellerFlow does not provide, host, or redistribute Walmart schema files, does not submit feeds to Walmart, and does not store Walmart credentials.

Pricing

Simple plans for SellerFlow

Start free — import your own schema, match it to your payload, and see how many errors you have. Upgrade to Pro to see exactly what's wrong, plus batch processing, exports, and workflow tools. Pick a subscription or pay once for lifetime.

Free
$0
forever
 
JSON syntax, Walmart structure & identifier checks, plus schema import and product-type matching with error & warning counts.
Pro — Monthly
$9.99
per month
 
All Pro features, billed monthly. Cancel anytime.
Pro — Yearly
$59.99
per year
Best value
All Pro features, billed yearly — the equivalent of two months free.
Pro — Lifetime
$129
one-time
Pay once
All Pro features forever, with a single one-time payment.
Add to Chrome — start free

Payments are processed securely by Stripe via ExtensionPay. Subscriptions renew automatically until cancelled; the Lifetime plan is a single one-time charge. You can manage or cancel your subscription at any time. Prices are in USD.

About & contact

Independent software, built with care

LifeFlow is a small, independent studio. We build tools we'd want to use ourselves — private by default, no accounts required, and no data leaving your device unless you explicitly ask. Questions, feedback, or support?

lifeflowtools@proton.me