There isn’t one definitive “cheapest” fashion website in Singapore — prices vary by item, brand, seller and whether there’s a sale — but these are the platforms Singapore shoppers most often use when hunting for the lowest prices (with strengths noted):

• Temu — ultra-low everyday prices on fast-fashion items (aggressive discounting). Good for very cheap basics but check reviews, shipping/returns. (apps.apple.com)
• SHEIN — large selection of very low‑priced clothes and frequent promo codes/sales (also returns policy and product‑quality caveats to watch). (m.SHEIN.com)
• Shopee and Lazada — big C2C/Catalogue marketplaces with huge price competition and frequent vouchers/flash deals (often the cheapest for many single items). (general market knowledge — see marketplaces listing). (topinsingapore.sg)
• Qoo10 — Singapore‑headquartered marketplace known for time‑sales, vouchers and bargains. Frequently used for budget shopping. (atome.sg)
• ZALORA — not always the absolute cheapest, but lots of branded items on heavy clearance/flash sales (good source for discounted brand-name fashion). (ZALORA.sg)
• Carousell (secondhand) — best if you’re looking for the single cheapest option by buying used items locally (no web.run citation needed for general marketplace type).

How to find the cheapest item quickly

• Compare the exact item across platforms (search image/keywords).
• Use platform filters: sort by price+shipping, check seller ratings.
• Wait for mega sale events (10.10, 11.11, 12.12, Payday sales) and stack vouchers/cashback. (apps.apple.com)
• Factor total cost: item price + shipping + import duties (some ultra‑cheap overseas sellers may add fees or take longer). Recent policy changes have affected pricing for Temu/SHEIN in some markets — so watch for price updates. (washingtonpost.com)

If you tell me what type of clothing (e.g., t‑shirts, dresses, branded jeans) and whether you prefer new vs secondhand or local vs imported, I can compare a few current listings and point to the cheapest option right now.