I Used 50 Free Online Productivity Tools For a Week. Here Are The Only 6 Worth Your Time.

I spent the last seven days doing something deeply unhinged: I actually used 50 of the top-ranked free online productivity tools, for real tasks, for at least 15 minutes each, and then ranked every single one. No sponsored spots, no affiliate revenue considerations, no "everybody wins" trophies at the end.

The selection criteria for the 50 candidates: they had to rank on the first page of Google for a relevant keyword, they had to offer a genuinely free tier (not a 7-day trial), and they had to be web-based — no desktop installs, no browser extensions. That last filter eliminated most of the obvious suspects and left us with the actual free-tools ecosystem.

Before we get into the winners, let us quickly cover the losers, because the pattern is educational. Seventeen of the 50 tools showed a paywall or a sign-up modal before I could complete the task I came to do. Eleven more served me three or more auto-play video ads on a single page. Five had calculators that were, mathematically, wrong — I verified using the open-source formulas each task is based on. The most depressing category: twelve websites took the same open-source library from npm, pasted it into a barely-styled HTML page, covered it in ads, and outranked better tools through pure SEO budget. That last pattern is the reason Compyrix exists.

Now for the six tools that genuinely impressed me, and the specific tasks I would use each for. We are linking to all of them on the changelog post if you want to try them yourself. I am not going to pretend these are perfect; they just cleared the bar of "I would actually use this again voluntarily."

Tool number one: a word counter that does not just count words and characters — it also gives you reading time by audience type, speaking time, a grade-level readability score with three different formulas, and a stop-word density report. This one has no ads, no sign-up, no tracking. If our own Word Counter ever falls behind, this is the benchmark we are chasing.

Tools two and three: a password generator that supports passphrases using the actual EFF wordlist (not some ad-hoc word list of 1,200 common words) and a JSON formatter that can parse 50-megabyte files without the tab freezing. These are table-stakes features that most tools get wrong, so it is worth calling out the ones that get them right.

Tools four through six: a percentage calculator that shows the formula for each of the six common modes instead of just spitting out a number, a unit converter that properly handles temperature deltas and not just absolute temperatures, and — the only AI tool that made the cut — a paraphraser that does not sound like it was written by someone who has never read an English sentence. That last one is a low bar, and yet. A week of this testing really drove home how rare it is for a free tool to treat the user like an adult.