Track watering, feeding, environment, light schedule, and harvest — for indoor, outdoor, greenhouse, or hydro. Free, private, and it runs entirely in your browser.
Built by an actual home grower, for home growers — not a stripped-down demo of an enterprise ag-tech platform.
Set an interval per plant, get flagged the moment it's due, log it in one tap. Editable activity log means a double-tap mistake takes two seconds to fix.
Temperature (°F or °C), humidity, pH, and EC/PPM per plant, with a trend sparkline and general target ranges for every growth stage.
Set an hours-on/off cycle and a target veg length — BudLog nudges you when it's time to flip to 12/12.
Log clear/cloudy/amber estimates and get a plain-language read on ripeness, so harvest timing is less of a guess.
Log wet/dry weight and track a jar-burping schedule through cure, with the same reminder system as watering.
Once you've got a few harvests logged: total yield, average days to harvest, and a breakdown by strain and grow medium.
Attach photos to any plant to track visual progress over time, right alongside the rest of its history.
Turn any plant into a shareable card with its photo, strain, and yield stats — one tap to share to social or save as an image.
Select multiple plants and water or feed a whole room in one tap instead of clicking through each one.
CSV plant lists, a calendar file for real phone notifications, and a full JSON backup you can restore on a new device.
A VPD calculator, feed mixer, EC/PPM converter and quick unit converters. Your environment log works out VPD for every reading automatically.
Log what each grow costs, then see cost per gram, grams per watt and yield per square foot once you have a dry weight.
Take cuttings from a mother plant and create up to 24 numbered clone entries in one go. They copy the strain and settings, and link back to the mother so you can see the family tree.
A plain-English how-to guide walks through every feature, from your first plant to backups and moving devices.
Built and updated by one grower-minded developer, with new features shipping regularly. Feedback shapes what comes next.
This is tracking a legal but still personal activity. BudLog is designed around that.
Everything runs client-side in your browser. There's no login, no database, nothing to be breached.
BudLog doesn't run analytics, ad networks, or third-party trackers of any kind.
The whole app, every feature, no paywall.
Export a full backup any time and take it with you — you're never locked in.
Four color themes, switchable any time
Yes, completely. Every feature, no account, no paywall.
On your own device, in your browser. BudLog has no backend server and never sends your grow data anywhere.
Yes — open it in any mobile browser, and you can add it to your home screen for a full-screen, app-like experience.
Once loaded, most of the app works without a connection. Data is saved locally on the device you're using.
BudLog is a record-keeping tool intended for use where cannabis cultivation is legal under applicable state, local, or medical program rules. You're responsible for knowing and following the laws that apply to you.
Yes — export your watering/feeding/burp schedule as a calendar file (.ics) and import it into your phone's calendar app for native push reminders.
No signup. Just open it and add your first plant.
Open BudLog — it's free →BudLog is a single file. Download it and open it locally — no hosting, no internet connection required after that, nothing leaves your device.
Unzip it, double-click budlog.html, done. Includes a plain-language how-to.