Subreddits worth posting in if you're building for e-commerce

Last updated 5/16/2026

If you're building a Shopify app, a DTC analytics tool, or anything that sits between a merchant and their checkout, Reddit is one of the few places where your actual users hang out and complain in public. That's gold for finding early customers — but only if you post in the right rooms.

Most e-commerce subreddits are run by store owners who've been burned by SaaS spam, so the bar for self-promotion is higher than in general founder communities. The list below mixes broad founder subreddits (where you can talk about building the tool) with merchant subreddits (where your actual buyers live, and where the rules are stricter).

Pick three or four to start. Don't carpet-bomb.

The subreddits worth your time

r/shopify

~230k members

The largest concentration of Shopify merchants on Reddit. If your tool plugs into Shopify in any way, your customers are here asking questions about the exact problem you're solving.

Rules to know: Self-promotion is heavily restricted. Most direct app promo posts get removed; comments answering merchant questions are tolerated and effective.

  • — Answering 'how do I track X' threads with genuine help
  • — Sharing a teardown of a Shopify trend or change
  • — Asking merchants about a specific workflow problem

r/ecommerce

~350k members

Broader than r/shopify — covers WooCommerce, BigCommerce, and platform-agnostic store owners. Good for tools that aren't Shopify-only.

Rules to know: No direct promotion of your own product. Educational posts and discussion threads are fine if you don't link to a landing page.

  • — Breakdown of an interesting DTC brand's stack
  • — Data post on conversion or shipping trends
  • — Question framed around a real merchant pain point

r/dropship

~270k members

Heavy with new and small merchants who buy tools quickly. If you sell a fulfillment, supplier-finding, or store-launch tool, the intent here is strong.

Rules to know: Self-promo is restricted but enforced inconsistently. Most users tolerate tool mentions if they're contextual, not pitchy.

  • — Comparison of supplier or fulfillment options
  • — Walkthrough of an automation that saved time
  • — Lessons from talking to dropshippers about a workflow

r/FulfillmentByAmazon

~200k members

If your tool touches Amazon sellers — repricing, PPC, inventory, reviews — this is the main hub. Sellers here are sophisticated and spend real money on software.

Rules to know: No promotion in posts. Comments referencing tools (yours or competitors') are allowed when relevant to the question.

  • — Answering PPC or inventory questions in-depth
  • — Sharing a finding from analyzing seller data
  • — Asking sellers about a tool gap you're researching

r/AmazonSeller

~100k members

Smaller and more discussion-friendly than r/FulfillmentByAmazon. Sellers here are more willing to share workflows, which makes it easier to validate problems.

Rules to know: No direct self-promo. Tool recommendations in comments are common and not aggressively moderated.

  • — Open-ended question about a seller workflow
  • — Comparing how sellers handle a specific task
  • — Sharing a free template or checklist

r/SideProject

~200k members

Where founders go to share what they're building. Good for getting feedback on the tool itself and reaching other builders who run side stores.

Rules to know: Self-promotion is allowed and expected. Posts should show the project, not just link to it.

  • — Launch post with screenshots and the problem you solved
  • — 'I built X for Shopify stores — feedback wanted'
  • — Behind-the-scenes of building the tool

r/indiehackers

~85k members

Founder audience overlapping heavily with people running small e-commerce side projects. Useful for distribution and for finding your first beta users among other builders.

Rules to know: Self-promo allowed if framed as a build journey or lesson, not a pitch. Pure 'check out my product' posts get downvoted.

  • — How I got my first 10 Shopify users
  • — What I learned charging merchants for X
  • — Open question about pricing or positioning

r/SaaS

~250k members

Good for the meta-conversation around your tool — pricing, churn, onboarding — and occasionally for finding other SaaS founders who also run stores.

Rules to know: Light self-promo is tolerated in dedicated threads. Standalone pitch posts often get removed.

  • — Pricing teardown of your Shopify app
  • — How you reduced churn on a merchant-facing tool
  • — Question about freemium vs. trial for e-commerce SaaS

r/EntrepreneurRideAlong

~260k members

Build-in-public friendly. Founders here share revenue, ad spend, and stack details — useful if your tool helps with any of those.

Rules to know: Self-promo allowed when paired with substance (revenue, lessons, process). Low-effort promo gets removed.

  • — Monthly recap of building an e-commerce tool
  • — Case study from a merchant using your product
  • — Detailed post on a marketing experiment that worked

r/woocommerce

~30k members

Smaller but underserved. If your tool supports WooCommerce, you'll have far less competition for attention than in r/shopify.

Rules to know: Help-oriented posts welcome. Direct promotion of plugins is discouraged but tool mentions in answers are common.

  • — Answering plugin or performance questions
  • — Comparing WooCommerce vs. Shopify for a use case
  • — Sharing a snippet or workaround you built

Reddit can get you your first 20 users, some sharp feedback, and a handful of testimonials. What it won't do is replace a real distribution strategy — most subreddits will throttle your reach the moment you start posting consistently about your own product, and merchants in particular are quick to flag anything that smells like a pitch. Treat Reddit as a place to be useful first and visible second.

If you're posting across several of these, it's worth tracking which subreddits actually send signups versus which just send upvotes. That's the part most founders skip. Quirre helps with attribution so you stop guessing whether r/shopify or r/SideProject is doing the real work.

Common questions

How often can I post about my e-commerce tool without getting banned?
On founder subreddits like r/SideProject or r/indiehackers, once every few weeks is fine if each post has substance. On merchant subreddits like r/shopify or r/ecommerce, don't post about your product directly at all — focus on comments. Mods track usernames, and a pattern of self-promo posts will get you shadowbanned faster than a single bad post.
Should I post in r/shopify or just comment there?
Comment. r/shopify mods remove almost every promotional post, including soft ones. But answering merchant questions in detail — especially ones that touch your product's use case — works extremely well. Your username links to your profile, and curious merchants will click through.
What works better than dropping a link to my landing page?
Posts that show the actual product (screenshots, a short demo, the specific problem it solves) outperform link drops by a wide margin. Better still: write up a lesson from building the tool, a teardown of a competitor, or a case study from a real merchant. The link goes in the comments or your profile.
Are smaller subreddits worth posting in?
Yes, usually more than the big ones. A post in r/woocommerce or r/AmazonSeller has less competition and a more engaged audience than the same post in r/ecommerce. The signups per upvote ratio tends to be much higher in niche subs.
Do Reddit users actually buy SaaS tools?
Merchants on r/shopify, r/FulfillmentByAmazon, and similar subs absolutely buy tools — they're running businesses and have budget. Founders on r/SaaS or r/indiehackers are more skeptical buyers but useful for feedback and word-of-mouth. Adjust your expectations by which audience you're talking to.
How do I know which subreddit is actually driving signups?
Use UTM parameters on every link you post, and check referral traffic in your analytics. If you're posting across five or more subreddits, manual tracking gets painful fast — this is where a tool like quirre is useful, since it ties Reddit activity to actual conversions instead of just clicks.