VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

ResellerFees.co.uk
Vendoo.co
ProfitHelm
Crosslist
Profit Per Order
ResellerFees
Sellertour PayPal fee Calculator
Free resale fee calculator: compare seller fees across eBay, Poshmark, Mercari, Vinted, Depop and Etsy in one place. See where you keep the most profit.

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
EJS
Eloquent JavaScript
|
|
|
|---|---|---|
| Website | eloquentjavascript.net | sellwhere.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
SellWhere is a free fee comparison tool built for resellers who sell across multiple platforms. One input, six answers. Enter a sale price once and instantly see your net payout ranked across eBay, Poshmark, Mercari, Vinted, Depop, and Etsy. No more switching between calculators or guessing which...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of SellWhere.app yet.
Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
More videos
No SellWhere.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and SellWhere.app.
SellWhere.app's answer:
SellWhere.app's answer:
SellWhere is the only free tool that lets you enter a sale price once and instantly compare your net payout across 6 major resale platforms — eBay, Poshmark, Mercari, Vinted, Depop, and Etsy. Most fee calculators only handle one platform at a time.
Our eBay calculator goes deeper than any competitor, modeling 20+ item categories, 6 store subscription tiers, and 3 seller levels. Every calculator shows when fees were last verified, with direct links to official fee pages so you can trust the numbers.
SellWhere.app's answer:
SellWhere serves two main groups:
SellWhere.app's answer:
SellWhere was born from a real frustration: resale platform fees are confusing, constantly changing, and scattered across different help pages. We wanted one place to see exactly what you'd take home on every major platform, with no guesswork.
Resale fees are also in a period of rapid change — Mercari dropped its seller fee to 0% in 2024, Depop eliminated buyer fees in mid-2024, and Vinted launched in the US in January 2026. Keeping up is hard. SellWhere was built to be the single source of truth for resellers navigating these shifts.
Share your experience with using Eloquent JavaScript and SellWhere.app. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking SellWhere.app since Aug 2026.
When comparing Eloquent JavaScript and SellWhere.app, you can also consider the following products.

Build and debug modern web and cloud applications, by Microsoft
Compare VS Code to Eloquent JavaScript or SellWhere.app:

Free UK reseller profit calculator for 2026. Instantly compare eBay, Vinted, Depop, StockX, Grailed, and Whatnot fees. Calculate your true take-home profit with our margin tool.
Compare ResellerFees.co.uk to Eloquent JavaScript or SellWhere.app:

A front end web development playground.
Compare CodePen to Eloquent JavaScript or SellWhere.app:

Vendoo helps warehouses and e-commerce companies reach different marketplaces, increase their exposure, and manage their inventory from one place.
Compare Vendoo.co to Eloquent JavaScript or SellWhere.app:

Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Compare GitHub to Eloquent JavaScript or SellWhere.app:
Free Shopify profit calculator with real-time P&L tracking. See true profit after COGS, fees, and ad spend.
Compare ProfitHelm to Eloquent JavaScript or SellWhere.app: