The collection includes more than a hundred and thirty browser calculators, open hardware sketches you can flash tonight, structured chemistry on hundreds of nutrient products, an open data schema for growing systems, and the grow-recipe standard that ties targets to automation. Cards here carry the Ours badge, and each links into the site where the thing actually lives.
This is one shelf of The Agriculture Resource Library, 21 entries strong. Search every shelf at once in the card catalog, or suggest a resource we missed.
A library earns trust two ways: by what it points to, and by what it holds that nobody else has. This shelf is the second kind. Everything here was built by this collective, lives on this site, and stays free with no account:
The external shelves inherit their credibility from this room: we recommend other people's tools as people who build and maintain our own.
21 entries
Software tool
11 free tools for air, climate & co2, including Air Exchange Rate Calculator (ACH), Climate Zone Classifier, CO₂ Enrichment Calculator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
7 free tools for bees & pollinators, including Apiary Site Survey, Bee Disease & Pest Reference, Bee Forage Selector.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
7 free tools for business, energy & compliance, including Cultivation Carbon Footprint Estimator, Compliance Readiness Checker, Cycle Cost-of-Goods-Sold Calculator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
5 free tools for crops & cultivars, including Crop Risk Assessment, Cultivar Browser, Disease Resistance Lookup.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
14 free tools for field, beds & planting, including Companion Planting Reference, Cover Crop Selector, Field Border / Hedgerow Designer.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
13 free tools for light & photoperiod, including Cost-per-DLI Calculator, Daylight Calculator, Day/Night DIF Designer.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
9 free tools for livestock & pasture, including Animal Birth & Hatch Calendar, Brooder & Hatchery Calculator, Egg Production Estimator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
5 free tools for mushrooms & aquaculture, including Aquaculture Tank Calculator, Aquaponic Stocking Density Calculator, Mushroom Grain Spawn Recipe Calculator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
4 free tools for plant health & ipm, including IPM Beneficial Insect Selector, Pathogen Pressure Forecast, Pest & Disease Identification Guide.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
3 free tools for post-harvest, including Drying & Curing Schedule Designer, Drying & Curing Yield Loss Calculator, Winter Storage Calculator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
3 free tools for sensors & monitoring, including Camera Resolution Calculator, Hardware Build Configs, Sensor Comparison.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
6 free tools for specialty crops, including Cut Flower Production Math, Hop Trellis Planner, Maple Syrup Production Estimator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
21 free tools for structures, greenhouse & energy, including Battery Bank Sizing Calculator, Grow Room Capacity Calculator, Composting Toilet & Humanure Designer.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
12 free tools for substrate & soil, including Soil Amendment Calculator, Compost C, Compost Pile Sizing Calculator.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
1 free tools for uncategorized, including tier-assessment.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Software tool
13 free tools for water, nutrients & feed, including Brix Refractometer Guide, Tank-Mix Compatibility Checker, Compound Lookup.
Pick the tool shaped like your question and run it in the browser.
Visit ↗Checked Aug 30, 2026
Standard
Machine-readable grow recipes: targets by crop and stage in an open format, with a public standard behind them.
Setpoints you can load, compare, and argue with, instead of folklore.
Visit ↗Checked Aug 30, 2026
Software tool
Free, open firmware for cheap sensors: flash an ESP32 from the browser and it reads probes and reports to a place you own. Source is public on GitHub.
The build-one-tonight software, tested on the bench and in the field.
Visit ↗Checked Aug 30, 2026
Software tool
134 free calculators built by the collective: VPD, nutrients, lighting, structures, livestock, bees, and more. Every one runs in the browser and can be embedded on your own site.
Run the numbers on nearly any growing question without a spreadsheet or a subscription.
Visit ↗Checked Aug 30, 2026
Dataset
A national directory of the places of American agriculture: farmers markets, agritourism, CSAs, food hubs, on-farm markets, processors, with county profiles built on the USDA census.
Find the ag places near you, or claim your own listing and control how it shows.
Visit ↗Checked Aug 30, 2026
Standard
An open data schema for grower observations, so readings mean the same thing across tools. Published with a developer reference and compatibility notes.
A common shape for your data that no vendor can take away.
Visit ↗Checked Aug 30, 2026
More than a hundred and thirty calculators that run in the browser with no account: VPD, DLI, nutrients, frost dates, greenhouse sizing, and the rest of the big tent. Plus open hardware sketches for sensors and controllers, reference data on nutrient products, and an open schema for growing-system data. All of it free, all of it linked from this shelf.
A grow recipe is the set of environmental targets for a crop through its life: temperature, humidity, light, and feeding, stage by stage, written in a form both a person and an automation system can follow. We publish an open recipe standard and a growing set of recipes built on it, so a target like "seedling week two" can drive a real controller.
Yes. The site's content is published under Creative Commons attribution licensing, the calculators can be embedded on your own pages, and the sketches are open source. Attribution is the whole ask. If you build something with them we would genuinely like to hear about it.
