Quick answer: Choose the marketplace that fits your inventory, selling format and available time. Begin with one platform, learn its costs and order process, and add another only when you can manage the extra work.
The best place to begin depends on what you have, how you want to sell and how much time you can give the process. A marketplace that works well for someone else's inventory may be awkward for yours.
Choose one place to learn first. You can add another later after you know how to price, manage orders and keep track of stock. This comparison is written for US sellers; availability and charges can vary by location and account.
Compare the work, not just the audience
The fit suggestions below are RTL's practical judgments, not claims that one platform guarantees a higher selling price.
| Marketplace | A reason to consider it | Work to think about |
|---|---|---|
| eBay | Identifiable products, parts, collectibles and varied inventory that buyers search for | Research, accurate listings, shipping choices and order handling |
| Mercari | A relatively straightforward listing approach for suitable shippable secondhand goods | Competitive buyer total, shipping settings and platform charges |
| Poshmark | Clothing and accessories that suit a closet-style shopping experience | Garment details, measurements, offers and managing your listings |
| Whatnot | A selling style built around live interaction, alongside fixed-price options | Preparation, presenting, audience interaction and fulfilling orders |
| Facebook Marketplace | Bulky or everyday items that may make sense to sell locally | Messages, arranging collection and agreeing clear handoff details |
Each marketplace has category rules. Check that your particular item is allowed rather than relying only on a broad category description.
A useful first cut: Start by comparing local options for an awkward-to-ship item; compare shippable marketplaces for small goods; consider live selling only if you want the presenting work. Then compare two platforms using one actual item.
Start with eBay when buyers need the exact item
If you can identify a model, part number, edition or specific collectible, eBay is a reasonable platform to investigate. Research useful sold comparisons and check how similar items are presented. Its different listing and shipping options give you choices, but those choices also take time to learn.
For example, someone with several identifiable replacement parts may prefer working through searchable listings to presenting inventory in a live show. That is a workflow choice, not a promise about demand.
Compare Mercari and Poshmark using an actual item
For a shirt or similar item, check the listing process, expected buyer total, shipping arrangement and amount left after fees on each platform. Do not compare only the headline fee or repeat an old claim that a marketplace has no seller charges.
Mercari and Poshmark both publish their current fees. Lower-priced items can be affected differently from higher-priced ones, so run your own price through the current policy before deciding. Mercari fees · Poshmark fees
Here is a made-up comparison to copy: if one platform leaves $18 after all costs and another leaves $20, the difference is $2. Ask whether the second option adds work or makes the item easier to sell. Put actual fees and shipping into that calculation; the figures here are not platform rates.
You may find one app easier to manage. Ease matters when you are trying to complete your first few listings rather than learn every marketplace at once.
Consider whether you actually want to sell live
Whatnot offers live selling and fixed-price options. Live selling involves more than uploading pictures: you need to prepare inventory, explain items, manage the session and fulfill the resulting orders. A seller who enjoys that interaction may like the format; someone who wants quiet, flexible listing time may prefer a different starting point. Whatnot seller overview
Check category-specific commission and processing charges before planning prices. Do not assume an auction will reach the number you hoped for.
Use local selling when shipping is the obstacle
A desk or other bulky item may be easier to assess as a local sale through Facebook Marketplace than as a shipped order. Be specific about dimensions, condition, collection arrangements and whether the buyer needs help moving it. Marketplace selling features vary, so confirm what your account offers. Meta's Marketplace selling guidance
Keep communication and the handoff manageable. “Local” does not mean there is no work after posting.
Try this today: Choose three items and compare only two suitable platforms. Write down expected proceeds, shipping or collection work, and which process you are willing to repeat. Start where those answers fit best.
If eBay is your choice
Our beginner eBay guide covers the starting steps. For questions about your own setup, see the RTL one-hour eBay help call. You can bring your first-listing or shipping questions and choose what we work on. The service is focused on eBay, so choose the marketplace that fits you before deciding whether the call would help.