{ "schema": "tesign-radar/item/1", "generated_at": "2026-09-17T01:56:13.055Z", "lang": "en", "slug": "bg0", "url": "https://tesign.com/en/item/bg0/", "alternates": { "ko": { "html": "https://tesign.com/item/bg0/", "json": "https://tesign.com/item/bg0/index.json", "markdown": "https://tesign.com/item/bg0/index.md" }, "en": { "html": "https://tesign.com/en/item/bg0/", "json": "https://tesign.com/en/item/bg0/index.json", "markdown": "https://tesign.com/en/item/bg0/index.md" } }, "name": "BG0", "use_label": "No-account background remover", "one_liner": "Removes a photo's background entirely inside your browser — no upload, no server, no account.", "text": { "why": "Most online background removers require uploading the photo to a server and cap free usage. BG0 does the opposite: it runs inference directly in the browser with WebGPU when available (falling back to WebAssembly), downloading and caching a BiRefNet-family ONNX model picked for the hardware. The photo and its output never leave browser memory, and there's no account, API key, billing, or usage limit.", "take": "One of the few background removers that actually keeps its \"nothing is uploaded\" promise — worth asking why any other one needs your photo on a server at all.", "build": [ "Make a passport photo's or product photo's background transparent, instantly", "Add the same local, private background removal to your own web app with @bg0/browser", "Study its Playwright layout-regression suite (11 viewports) as a reference for testing an image-processing UI" ], "who": [ { "role": "Anyone privacy-conscious", "situation": "when a face or ID photo shouldn't touch a server" }, { "role": "A small shop owner", "situation": "cleaning up product photos quickly, with no account or bill" }, { "role": "A web developer", "situation": "wiring the same feature into their own app via the library" } ], "start": [ { "command": false, "text": "Use it now: open https://bg0.dev and drop a photo" }, { "command": false, "text": "Run locally (requires Bun 1.4):" }, { "command": true, "text": "bun install --frozen-lockfile" }, { "command": true, "text": "bun run dev" }, { "command": false, "text": "→ web app on port 3000, docs on port 4321" } ], "caveat": [ "The code is Apache-2.0; the downloaded model weights carry their own licences, listed in THIRD_PARTY_NOTICES.md", "The first run needs network access to fetch the model (it runs from a local cache after that)", "Devices without WebGPU fall back to WebAssembly and may be slower" ] }, "cta": { "type": "try", "label": "TRY", "url": "https://bg0.dev/" }, "ready": "browser", "categories": [ "media", "api" ], "categories_confirmed": true, "tags": [ "background-removal", "privacy", "webgpu", "local-first", "browser" ], "platform": [ "web" ], "license": { "spdx": "Apache-2.0", "scope": "permissive", "scope_text": "Commercial use, redistribution OK. Keep notices; mark changes.", "url": "https://spdx.org/licenses/Apache-2.0.html", "note": null, "open_source": true }, "language": "TypeScript", "source_urls": { "canonical": "https://bg0.dev/", "github": "https://github.com/opencoredev/bg0", "huggingface": null, "app_store": null, "sightings": [ { "source": "github", "url": "https://github.com/opencoredev/bg0", "posted_at": "2026-09-15T15:00:00.000Z", "hn_url": null } ] }, "numbers": { "as_of": "2026-09-16T21:00:00.000Z", "stars": 79, "stars_unit": "GitHub stars", "stars_checked_at": "2026-09-15T21:33:32.877Z", "stars_observed_since_check": 12, "star_delta_24h": 12, "star_delta_7d": 28, "star_delta_30d": 28, "star_delta_unit": "GitHub stars gained in the window, GH Archive events summed to as_of", "spark_14d": [ null, null, null, null, null, null, null, null, null, null, null, null, 16, 12 ], "hf_likes": null, "hf_likes_observed_at": null, "hn_points": null, "hn_points_observed_at": null, "store": null, "method": "Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours." }, "ranks": null, "activity": { "pushed_at": "2026-09-15T20:49:55.000Z", "owner_type": null, "open_issues": null, "contributors": null, "releases_count": null, "latest_release": null, "checked_at": null, "core_checked_at": "2026-09-15T21:33:32.877Z" }, "signals": [ { "kind": "new", "label": "NEW", "value": "28h OLD WHEN SEEN" } ], "images": { "og": "https://tesign.com/img/og/bg0.en.png", "cover": "https://tesign.com/img/bg0-94be1cda4d.png", "cover_width": 1200, "cover_height": 630, "gallery": [ "https://tesign.com/img/bg0-94be1cda4d.png" ], "alt": "BG0's homepage: a dark screen with the headline \"Background removal that stays on your device.\"", "tier": 3 }, "dates": { "first_seen_at": "2026-09-15T21:33:03.258Z", "source_created_at": "2026-09-14T16:42:22.000Z", "discovery_hours": 28.84479388888889, "launch_signal_at": "2026-09-15T15:00:00.000Z", "kept_at": "2026-09-17T01:24:00.696Z", "first_published_at": "2026-09-17T01:24:00.858Z", "updated_at": "2026-09-17T01:26:30.150Z", "ingestion_mode": "live" }, "notes": [ "This file was produced by the same build, from the same data, as the tesign.com item page. The text is editorial; the numbers are stored observations.", "null in the JSON means not observed — never zero. The Markdown writes [unconfirmed] for it.", "Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours.", "A summary, not legal advice." ] }