Useful before you install anything

Small tools for real product decisions

These tools answer practical questions before a scan, study session, voice production, bird identification, or character battle. They run entirely in the browser and do not upload source material.

FreeNo sign-inBrowser-only processing

Available tools

Document planningPDF scan size calculator

Estimate the approximate size of a multipage A4 or Letter scan by page count, resolution, color mode, and compression.

Study and voiceReading and TTS time calculator

Count words and estimate silent reading or spoken playback time at a chosen pace and audio speed.

Voice productionVoiceover budget calculator

Estimate runtime, generated characters, localization volume, revision passes, and provider cost from your own unit price.

Field observationBird identification checklist

Check whether structure, field marks, voice, habitat, range, and alternative species support a candidate identification.

Character creationAI RPG character prompt generator

Build an original hero prompt from a goal, contradiction, class, faction, power cost, and visual motif.