Local-first browser utilities
Free browser tools for files, privacy, and planning
Convert media, clean metadata, generate passwords, plan costs, and research the web. Most utilities run entirely in your browser, so files never leave your device.
Browse all utilities
30 utilities · 7 guides or resources · Runs in your browser
- AI Pricing ExplorerBrowse the pricing database directly with presets, filters, pinned comparisons, source freshness, and inline history.
- AI Cost PlannerTurn public model pricing into a decision-maker shortlist with monthly scenario costs, hidden-fee pressure, and route-risk tradeoffs.
- Document WatermarkerPaste or choose images and PDFs, then add a flattened watermark without uploading private files.
- PDF EditorMerge files, reorder or drop pages, extract ranges, rotate scans, add text boxes, and cover/remove text directly in your browser.
- Image Format ConverterConvert images to PNG, JPG, WebP, GIF, BMP, or TIFF directly in your browser (AVIF/HEIC need native codecs).
- Video ConverterBrowser-native video converter for MP4, WEBM, or GIF with CRF, FPS, and resolution controls.
- Audio ConverterConvert audio to MP3, WAV, FLAC, or OGG entirely in your browser with bitrate, sample rate, channel, and loudness controls.
- Password GeneratorGenerate strong, policy-friendly passwords with secure randomness and one-click presets.
- English Prepositions GameDuolingo-style preposition practice with cloze phrases, streak scoring, records, and leaderboard.
- UI CatalogVisual catalog of 100 high-traffic web UIs with desktop, tablet, and mobile captures.
- Breed MatchmakerRank dog breeds against apartment life, kids, first-time ownership, low shedding, quiet homes, activity, and hot climates.
- Compare Dog BreedsCompare up to three breeds with plain-English tradeoff summaries instead of raw stat tables only.
- Dog World AtlasBrowse dog breeds by origin on a world map and jump into breed pages from each country cluster.
- Rare Breed VaultDiscover lesser-known dog breeds with spotlight profiles, origin details, source links, and related breeds.
- Guess the BreedPlay an image-first dog breed game with clues about origin, group, size, and traits.
- Swipe for DogsLike and skip breeds fast, then get a live read on your dog taste profile.
- Dream Dog BoardSave favorite breeds into themed boards and keep a visual shortlist gallery.
- Dogs ExplorerCompare dog breeds, stats, and visuals with an interactive explorer.
- Media Metadata ScrubberStrip EXIF/GPS data, resize to social/web presets, and compress images before uploading.
- Image to SVG TracerConvert raster images to vector SVG paths using potrace for B&W or vtracer for color graphics.
- Twitter Advanced SearchBuild X/Twitter queries with real-world operators beyond the built-in advanced search.
- Twitter Lists FinderSearch for Twitter lists on specific topics using advanced query operators.
- Twitter Places SearchFind Twitter place IDs for location-based searches using the _within:_ operator.
- Flight Calendar InviteTurn any flight number into a calendar invite with auto route lookup and an .ics download.
- Fuel Cost CalculatorEstimate trip fuel cost from fuel price per liter, distance in kilometers, and dashboard consumption, with optional route-based distance lookup.
- Professional Rate CalculatorCalculate optimal rates for your professional services based on experience, market position, and business costs.
- Series & Movie Release NotifierSearch TVMaze and Wikidata to find season finales or movie premieres and export a calendar reminder without API keys.
- Live Camera ASCIIStream your webcam and transform frames into ASCII art instantly without uploading video.
- Dumb Talking TextTurn any message into alternating-case mocking text without sending it anywhere.
- Crypto Mining with SolarSee whether your solar earns more mining Bitcoin or exporting, with live hashprice, real local sun, and halving-aware payback.
Guides and resources
Hubs, guides, plugins, and supporting workflows
- Dogs HubOpen the dog breed hub and jump into atlas, matchmaker, compare, swipe, boards, collections, and breed pages.
- Dog CollectionsBrowse dog collection pages for apartment, low-shedding, quiet, family, and guard-dog use cases.
- Twitter (X) Tools HubJump into the advanced search builder, operator guide, lists finder, places lookup, and capture guides.
- Twitter Advanced Search GuideLearn how to use X/Twitter search operators effectively with syntax tips and examples.
- Twitter Tweet Capture GuideCapture tweets with Tampermonkey using a step-by-step walkthrough.
- WordPress PluginOpen the current WordPress plugin page for monitoring category redirects and reviewing its official listing.
- Nonprofit Digital Grants AssistantInteractive tool to identify and apply for digital transformation grants for nonprofits in Spain.
Task paths