Write better prompts, budget your renders, and nail your formats — for Seedance, Veo, Sora, Kling, Runway and more. Everything runs in your browser.
Build cinematic prompts for Seedance 2.5, Veo 3.1, Sora 2 and Kling 3.0 — pick camera moves, lighting and style, get a ready-to-paste prompt.
Generate a prompt →48 copy-paste prompts formatted per model — Seedance 2.5, Veo 3.1, Sora 2 and Kling 3.0, from cinematic shots to product spots.
Browse prompts →Compare what your video will cost across 10 AI video APIs — Sora, Veo, Seedance, Kling, Runway, Wan — before you spend a cent.
Compare costs →Our picks by use case — faceless channels, script-to-video, cinematic shots, voiceover and best value. Honest, with real pricing.
See the picks →Seedance vs Veo vs Sora vs Kling and 6 more — price, audio, strengths and weaknesses of every major model, side by side.
Compare models →Same views, wildly different money — estimate your earnings by niche and see the Shorts vs long-form gap for yourself.
Calculate earnings →Words ↔ video minutes, with pace presets for TTS voices and YouTube narration. Plan Shorts and long-form scripts precisely.
Time your script →First-line openers built on our own view data — number-led hooks pulled 308 views where statement-led ones pulled 6.
Generate a hook →See exactly where your title truncates on mobile and desktop, and whether it carries the signals that earn clicks.
Check your title →The full sequence from niche choice to monetization — with the $0 production stack and the numbers you need to hit.
Read the playbook →Why the same 100K views is worth $20 or $2,000 — and how to run both formats without doubling your workload.
See the gap →The errors that burn credits and kill reach, ranked by how much money each one wastes — with the fix for every one.
Avoid them →Generate it yourself or hire someone? Compare true cost including your own hours, and get the break-even point.
Compare routes →What each free tier actually gives you — daily refills vs one-off credits, watermarks, resolution caps. Which ones carry a real project.
See what's free →Turn any tool's credit pack into real dollars per second — the only number that lets you compare plans honestly.
Convert credits →How many clips, frames and hours of rendering does your target length actually need? Plan before you generate.
Plan the shoot →i2v, CFG, seed, temporal coherence, retry tax — 30 terms explained plainly, with whether each one actually matters.
Learn the words →Bitrate × duration → file size in MB/GB, with presets for YouTube, Shorts and 4K. Know before you export.
Calculate size →Convert between resolutions and aspect ratios for TikTok, YouTube, Reels and cinema. Includes presets for every major platform.
Calculate ratios →AI video generation moved fast in 2026 — Seedance 2.5, Veo 3.1, Sora 2 and Kling 3.0 each speak a slightly different "prompt dialect", and their API prices range from $0.04 to $0.75 per second. The difference between a mediocre clip and a stunning one is usually the prompt; the difference between a $5 project and a $500 one is knowing the price sheet. These free tools handle both, plus the formatting math every short-form creator does daily.
No accounts, no watermarks, no server round-trips — every tool on this site runs entirely in your browser.