Hello there! My name is Peter and I'm a future rich person and ace programmer. I'm the founder and CEO of Browserling (a cross-browser testing company) and Online Tools (a get things done company). I'm also an advisor at H/F – world's largest startup network spanning 50 countries and 200 cities with 350,000 members.

Here I am on the day I raised an investing round for Browserling.

Here's what I've done over the years.

• In 2025 I signed up customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers, and signed up more customers.
• In 2024 I added paid plans to hex tools, binary tools, integer tools, csv tools, fractal tools, json tools, webp tools, added 30 new image tools, then 20 more image tools, then 10 more image tools, then 20 new png tools, then 20 more png tools, then 10 new csv tools, then 20 new json tools, then 20 new webp tools, then 15 more webp tools, then 10 new logo tools, then 15 new png tools, then 20 new icon tools.
• In 2023 I launched OnlineTools.com, added paid plans to random tools, number tools, unicode tools, ascii tools, utf8 tools, image tools, list tools, time tools, math tools, added 50 new text tools, then 20 more text tools, then 15 more text tools, then again 15 more text tools, then 10 more text tools, then 20 new time tools, then 20 more time tools, then 10 new list tools, then 15 new integer tools, then 35 new string tools, then 25 new gif tools, then 20 new jpg tools, then 25 new png tools, then 20 new unicode tools, then 10 new random tools, then 20 new binary tools, then 20 new number tools, then 20 more jpg tools, then 25 more png tools, then 25 new math tools, then 20 more math tools, then 20 more text tools, then 40 new image tools.
• In 2022 I launched Time Tools site, added paid plans to PNG, JPG, GIF tools and then also to Text and String tools, signed up even more great customers, and made Browserling a top 15k website in the world.
• In 2021 I launched a new user interface for Browserling, signed up new amazing customers, created another news aggregator HwURLs, and two more online tools network sites GIF Tools and List Tools.
• In 2020 I launched two more news aggregators TuxURLs and PhysURLs, added another tools network site Integer Tools, and a created video reviews section on my blog with reviews of my favorite tech talks.
• In 2019 I launched four more news aggregators DevURLs, SciURLs, FinURLs, and MathURLs, expanded tools network with four more websites Text Tools, Number Tools, Fractal Tools, and Unicode Tools, created catonmat tools, wrote the curl cookbook, and made Browserling a top 20k website in the world.
• In 2018 I helped the country of Cameroon restore Internet freedom, made Browserling a top 30k website in the world, increased online tools network to fifteen websites, created a neat collection of fractals, and launched a fun little tech news aggregator called TechURLs.
• In 2017 I 10x'd traffic to Browserling and made it a top 50k website in the world, launched a network of online tools, added 300+ tools to Browserling's web developer tools collection, went crazy viral in India, and was interviewed on Huffington Post.
• In 2016 I launched a comic for nerds, went viral and super-viral with it, created a collection of simple browser-based tools for web developers, created a Safari extension for Browserling, massively improved Browserling's SEO, joined Bloomsbury Health, an NHS Healthcare Innovation company, as a chief technology advisor, and added NHS as Browserling's customer.
• In 2015 I gave Browserling a new look, launched Live API and Bug Hunter, created browser extensions for Chrome, Firefox, Opera, won ProductHunt's product of the day title, joined June Inc as a technical advisor, became Hacker-in-Residence at Hackers/Founders, kept writing articles that got millions of views, and was interviewed on Fog Creek Software Blog.
• In 2014 I kept improving Browserling and Testling, and wrote a bunch of interesting articles, including Top 10 Browserling Inventions.
• In 2013 I became a published author with No Starch Press and pushed another 10 projects to GitHub.
• In 2012 I grew Browserling to 200 customers and wrote my third book called Perl One-Liners Explained. It's similar to my previous two books and it teaches Perl through 130 well-explained examples.
• In 2011 I incorporated Browserling Inc, raised funding, created Testling, open-sourced 90 node.js modules, and self-published two books – Awk One-Liners Explained and Sed One-Liners Explained.
• In 2010 I created StackVM, Browserling, joined Hackers/Founders, published another 20 projects to GitHub, and added once(cb) method to node.js's core.
• In 2009 I joined Plurk as hacker extraordinaire, wrote Python libraries for scraping Google Search, Google Sets, Google Translate and Google Sponsored Links, and published 30 projects to GitHub.
• In 2008 I wrote The Definitive Guide to Bash History, created Reddit River, Reddit Top and Hacker News Top.
• In 2007 I started this blog, created Reddit Media, DigPicz, PicURLs, and got featured on Diggnation. Reddit offered me a job but Digg later sent me a cease and desist letter. Guess which company is still around today?
• In 2006, inspired by ShoeMoney and John Chow, I became fascinated with online marketing. I quit everything I was doing and created a network of MFA sites. I also created a Winamp Music Reporter plugin for Digital Point Forums.
• In 2005 I became world's top Brainbench certificate holders with 49 certificates in pretty much every computing area. At that time I held the 2nd position in world's general Linux certification leaderboard with a score 4.91/5.00. Only one person had the perfect score 5.0/5.0. I still don't know how they did it. Here are a few certificated they sent me. I also wrote tons of scrapers and added simple cookie interface to curl and curlpp.
• In 2004 I programmed embedded Linux systems and learned assembly by implementing a very fast RC4 algorithm. I also created a physical security alarm system.
• In 2003 I created my own IDS/IPS system based on Linux, Snort, and Zorp, and did a lot of pentesting.
• In 2002 I did a lot of web programming and I also learned Linux. I started my first blog this year. I'll restore it from the backups some day.
• In 2001 I created software for controlling electronic doors in C. It ran on DOS and used parallel port for communicating with the door controller.
• In 2000 I quickly learned mIRC scripting, HTML, CSS, JavaScript, and Visual Basic. I wrote my own IRC client, ran a network of Eggdrop bots, and took over channels on IRCNet.