Bootstrapped file converter Zamzar marks 20 years and 766 million conversions

Zamzar, the online file conversion service founded by brothers Chris and Mike Whyley, is marking its twentieth anniversary with a retrospective that doubles as a small-business case study: 766,615,348 files converted, more than 550 million people served, and no outside investment. In the post, published on the Zamzar blog on 30 October 2026 and later featured on the front page of Hacker News, the founders walk through two decades of running a deliberately unglamorous product.

From dial-up to two thousand formats

The brothers launched the site in 2006 using dial-up modems and a battered guide to HTML4, and named it after a fictional character who wakes up transformed into a giant insect. The premise was simple: they had files they could not open, and they did not want to install desktop software that, as they put it, required a computer science degree to operate.

According to the post, Zamzar supported 150 conversion types at launch. It now handles 2,128, and processes more than one million API requests per day — a sign that the service has quietly become infrastructure for other applications, not just a destination for individual users.

A user base that reaches everywhere

The founders shared a breakdown of last year's visitors that underlines how far a web service travels. One person logged in from Tokelau, a Pacific nation of 1,499 people that the post notes is among the world's smallest sovereign states. Three came from Svalbard, the Norwegian archipelago where cats are banned and snowmobiles outnumber residents. Thirty-eight visits arrived from Antarctic research stations, home to roughly a thousand scientists over winter, and 41 came from Vatican City.

The anecdotes are stranger still. Zamzar says it has helped the inventor of PowerPoint recover long-lost presentations, supported internet pioneer Vint Cerf's work on preserving digital history, and partnered with Xerox to let printers turn documents into spoken-word audio. The company has appeared on the BBC's Click programme, ended up sponsoring a team of Scottish curling champions, and once received a cease-and-desist letter from Google for letting people download YouTube videos.

Staying small on purpose

Twenty years on, Zamzar remains a small, privately owned UK company. The founders write that they have taken no venture capital, chased no unicorn valuation, and have no plans to pivot toward whatever the current technology cycle demands; the post ticks off social media, smartphones, blockchain, NFTs, the metaverse and now AI as trends it has simply outlasted, on the argument that people still need to convert their files.

Independence has also given the company room to donate a portion of its profits to more than 60 charities, schools and other causes, and the team remains small enough to thank by name in a single paragraph.

The post closes with users rather than metrics: Robin, whose 36 pages of work were rescued from unreadable gibberish, and Simha, who discovered the service through a friend in Israel more than a decade ago and still uses it today from Mexico.

Why it matters

Zamzar's headline numbers are striking on their own, but the retrospective is more interesting as evidence of what a narrow, single-purpose product can achieve without outside capital. In an industry that treats venture funding and rapid pivots as the default path, a two-person founding team that has spent twenty years converting files offers a counterexample: solve one common problem well, keep scope and costs in check, and outlast the hype cycles. The million-plus daily API requests also show how a consumer tool can grow into developer infrastructure without abandoning its original purpose. For anyone building an independent software business, the lesson from Zamzar is that durability itself can be the strategy.