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Technology

Understand the cost and capacity of your everyday technology.

An unbranded computer and electricity meter in a sunlit workspace.

PC electricity cost: active, idle and sleep

Compare the cost of your measured active, idle and sleep power. Test the saving from replacing idle time with sleep. The example values are assumptions, not hardware benchmarks.

Download and upload time calculator

Estimate a file transfer in either direction. Use upload speed for backups. Compare current throughput with twice that speed; enter 100% when your speed already measures actual file throughput.

Streaming data and allowance calculator

Plan usage from an assumed average bitrate and your own allowance. Include game downloads or updates separately. This is not a provider billing meter or a prediction of adaptive streaming quality.

Can a lower-power PC pay for itself in electricity savings?

Compare a 60 W and 20 W computer over different daily schedules. Calculate the electricity saving, upgrade payback and the limits of this comparison.

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Will a cloud backup finish overnight? Plan the upload window

Compare a first 250 GB upload with smaller daily backups. Work through upload speed, usable bandwidth and an eight-hour window before relying on a schedule.

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Free AI APIs: a practical guide to limits, privacy and zero-spend controls

A practical, evidence-grounded guide to free OpenRouter APIs with decision tables, workflows, and clear limits.

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OpenRouter Free Model Unavailable? A Free-Only Recovery Checklist

Diagnose unavailable OpenRouter free models, distinguish rate limits from account issues, and retry safely without silently selecting a paid model.

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Transparent Image Formats: A Small-Site Decision Table and Verification Checklist

Choose transparent image formats for logos, cutouts, and animations, then verify exports across real page backgrounds and browsers.

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Self-Hosting n8n on a VPS: A Deployment-Readiness Worksheet

Decide whether self-hosting n8n fits your workload, identify operating costs, and prepare a practical recovery rehearsal before moving important workflows.

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VPS and hosting cost comparison

Compare two hosting plans beyond the headline price: backups, storage, domains, licences and setup. Separate first-year cost from renewal-year cost.

Website bandwidth and egress cost calculator

Estimate monthly website data transfer and overage charges from measured page weight, expected page views and your hosting allowance.

Backup storage and retention calculator

Budget a simple backup retention plan with full copies, incremental changes and storage headroom. Estimate space and monthly storage cost.

Free hosting finder: VPS, development or static site?

Choose the hosting your project actually needs. Filter documented free options by workload and card requirements, with official limits and billing caveats.

Cron expression builder with UTC & local time preview

Build a five-field cron schedule, validate its syntax and preview the next five UTC runs in your time zone. Presets, field limits and clear scheduling warnings.

Privacy choices

Tools work without analytics. You may allow interaction measurement without sending your financial inputs. You can manage or disable advertising below. Regional consent requirements still apply.