Free cloud & AI cost tools

Practical tools for the cost decisions that actually move a cloud bill. No login, no email, no upload — every calculation runs in your browser, and the ones that read your billing data have no server to send it to.

BigQuery cost

BigQuery Slot vs On-Demand Advisor

Find out whether BigQuery Editions slots would actually save you money.

Paste 30 days of hourly aggregates from your own INFORMATION_SCHEMA and get a modelled recommendation: stay on-demand, or commit N baseline slots with autoscale. Runs entirely in your browser — nothing is uploaded.

Open tool

BigQuery Query Cost Analyzer

What this query actually costs — computed, not guessed.

Paste a query and get the structural findings that drive its cost: columns read, partition pruning that works and pruning that only looks like it does, and the 10 MB-per-table floor. Add your schema or a dry-run figure and it prices the query exactly. No login, nothing uploaded.

Open tool

BigQuery FinOps Query Pack

Copy-paste SQL for the cost questions you ask at 4pm during an incident.

A maintained library of INFORMATION_SCHEMA and billing-export queries — one page per question, each with what it returns, how to read it, and what it costs to run. Most of them are free to run because metadata queries scan no bytes.

Open tool

Cloud billing analysis

Cloud Bill Diff

Why did the bill go up? Separate the rate change from the usage change.

Drop in two billing exports — AWS CUR, GCP billing export, or FOCUS — and get a per-service and per-SKU breakdown of what moved, split into how much came from using more and how much from paying more. Reads the files in your browser; nothing is uploaded.

Open tool

Cost Allocation Score

Grade your tagging against the FinOps Foundation KPI, in one file drop.

Upload a billing export and get a score out of 100 for how much of your spend can actually be attributed to a team — with untaggable charges excluded rather than counted against you, and a fix list ranked by unallocated dollars, not resource count.

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Reference data

GCP Billing SKU Dictionary

What that mystery line on your Google Cloud bill actually is.

Search Google Cloud billing SKUs in plain English: what triggers the charge, what unit it bills in, what it costs by region, and how to make it smaller. The price list tells you the rate; this tells you the cause.

Open tool

Cloud Pricing Change Tracker

What changed in AWS, GCP, and Azure pricing — before your bill tells you.

A weekly, permalinked digest of SKU-level price changes across the three major clouds, with tier-boundary moves and retirements called out separately from the noise of new SKUs. Subscribe by RSS.

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AI & LLM cost

LLM Token Cost Calculator

Model your AI spend across 30+ models before the invoice arrives.

Compare what a real workload costs on Claude, GPT, Gemini, Nova, and open models — with prompt caching, batch discounts, and per-conversation unit economics. Includes an agentic budget-overrun simulator.

Open tool

Why these are free

Each of these answers a question our platform answers continuously against your live accounts. The tools here work on a snapshot you provide by hand; Finitizer connects read-only and keyless, re-evaluates every day, catches drift, and ships the fix as a Terraform PR or a Jira ticket. If the snapshot version is useful, the continuous version is more so.

See how Finitizer works →