URL Shortener Service

A Bitly-style service that converts long URLs into short codes, redirects on lookup, and tracks click analytics per link.

Node.jsExpressPostgreSQLReactRedis

How to build it — step by step

1
Encoding: Generate unique short codes (base62 of an auto-increment id or a hash) and store the mapping.
2
Redirect: On GET /:code, look up the original URL and issue a 301/302 redirect.
3
Analytics: Log click timestamp, referrer, and device; aggregate counts per link.
4
Caching: Cache hot code→URL lookups in Redis to reduce database load.

Add QR-code generation for each short link and a simple A/B feature that rotates between two destination URLs.

Hashing/encoding, HTTP redirects, caching strategy, and analytics aggregation.

Beginner · Web · 2-3 weeks

Beginner · Web · 3-4 weeks

Beginner · Web · 2-3 weeks

Beginner · Web · 2-3 weeks

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Last reviewed on June 13, 2026 by the AiTechWorlds Curriculum Team. Free to use — no signup required.

Last reviewed on June 13, 2026 by the AiTechWorlds Curriculum Team. Free project guide — GitHub resources included.

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CSE Projects›URL Shortener Service

2nd YearIntermediateWeb 3-4 weeks

A Bitly-style service that converts long URLs into short codes, redirects on lookup, and tracks click analytics per link.

Node.jsExpressPostgreSQLReactRedis

1
Encoding: Generate unique short codes (base62 of an auto-increment id or a hash) and store the mapping.
2
Redirect: On GET /:code, look up the original URL and issue a 301/302 redirect.
3
Analytics: Log click timestamp, referrer, and device; aggregate counts per link.
4
Caching: Cache hot code→URL lookups in Redis to reduce database load.