Here are the places Singaporeans most commonly shop for clothes online, grouped by type and with a short note about each:

Major fashion marketplaces (most popular for variety and deals)

• Shopee — huge selection, price-driven, frequent flash sales and in‑app promotions. (sitegiant.sg)
• Lazada — broad range (local + international sellers), LazMall for branded items and faster delivery. (sitegiant.sg)
• Qoo10 — price-competitive marketplace popular with bargain hunters and smaller sellers. (straitstimes.com)

Dedicated fashion e‑retailers and multibrand sites

• Zalora — Singapore’s leading online fashion destination (wide range of brands, fast delivery/returns). (sitegiant.sg)
• ASOS, H&M, Uniqlo, Zara online stores — used for specific international styles or sizes; many offer local shipping or click‑and‑collect. (brandradar.org)

Local brands and popular Singapore labels

• Love, Bonito — a homegrown womenswear brand widely shopped online in Singapore. (en.wikipedia.org)
• Charles & Keith, Pomelo — regional brands with strong online presence in Singapore. (brandradar.org)

Pre‑owned / peer‑to‑peer platforms

• Carousell — very popular for preloved clothing, vintage pieces and bargain finds. (straitstimes.com)

Other options people use

• Amazon.sg — used for certain international items and basics. (womensweekly.com.sg)
• SHEIN and other fast‑fashion sites — popular for very low‑cost trend pieces (quality and sizing vary). (brandradar.org)

Quick tips when shopping from these sites

• Compare prices across marketplaces (Shopee/Lazada/Qoo10) because sellers and promotions differ. (sitegiant.sg)
• Check sizing charts and return policies for international fast‑fashion (SHEIN, ASOS). (brandradar.org)
• For sustainable/quality buys, consider local brands (Love, Bonito, Charles & Keith) or preloved on Carousell. (en.wikipedia.org)

If you want, I can narrow this to a specific style (women’s workwear, streetwear, plus-size, kids’) or give top sellers and apps to download.