Practical guides to file converters, calculators, AI tools, and other free web utilities
A free browser tool that reads your bank CSV locally, detects recurring charges by frequency analysis, and totals what every subscription costs you per year, no Plaid, no upload, no account.
Fun & Random9 min read
A practical teardown of the edits that make any screenshot look designed, backdrop, padding, frame, caption, with a free browser beautifier that exports watermark-free PNGs.
Finance10 min read
Run year-by-year FIRE projections and seeded Monte Carlo success rates free in your browser, what each input means, how to read percentile bands, and the model's honest limits.
AI & Privacy9 min read
Drop your ~/.claude JSONL session logs into a free browser analyzer and see real token totals, cost estimates, model mix and session-length charts, nothing leaves your machine.
File Management9 min read
Every current App Store and Google Play screenshot size in one table, plus a free browser maker that exports exact store dimensions in batch, ZIP and PDF, watermark-free.
Developer & Data10 min read
Design one certificate template with merge fields, upload a CSV of names, and download every personalized copy as PNGs in a ZIP plus one combined PDF, free, no watermark, no sign-up.
Image Formats9 min read
Search more than 100,000 open-source icons live, recolor and resize them, adjust stroke width, and bulk-export SVG, PNG, and ICO files, a free browser icon editor with per-icon license links.
Math & Education9 min read
A free browser expense splitter handles weighted shares, multi-currency trips, and a minimum-transfers settle-up plan, no account, and nothing you type leaves your device.
Audio Tools8 min read
Free in-browser transcription runs OpenAI's Whisper model on your own device via WebGPU, timestamped SRT/VTT exports, no upload, no sign-up, and the only download is the model itself.
Image Formats9 min read
A free browser object remover runs the real LaMa inpainting model on your device, brush over a photobomber, get the background rebuilt, plus an unlimited 4x upscaler and product-photo presets.
PDF Tools9 min read
Build swipeable LinkedIn and Instagram carousels in your browser with platform ratio presets, brand colors, and export as a PNG sequence or a PDF document post, free, no watermark, no sign-up.
File Management9 min read
Translate text and subtitle files entirely on your device with open opus-mt models, SRT and VTT files keep their timestamps, languages are auto-detected, and nothing you paste gets uploaded.
AI & Privacy10 min read
A free browser grammar checker that underlines every issue with one-click fixes and a readability report, no upload, no sign-up, nothing you paste ever leaves your device.
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