Benchline

Generate seeded lorem ipsum, or fake JSON, CSV, or SQL rows from a list of field types.

Build a favicon pack from an image or up to three letters. The ZIP contains favicon.ico, PNG sizes, a web manifest, an HTML snippet, and a Next.js metadata snippet. Letters are drawn with a built-in bitmap font so the result does not depend on a system font. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB.

Build an invoice or quote PDF from company and client details, line items with quantities and rates, a tax rate, and an optional percent or flat discount. All money is computed in integer cents, so there are no float rounding errors. Returns the PDF as base64 plus the total.

Generate an RSA, EC, or Ed25519 key pair as PEM and JWK, or convert between PEM and JWK. The private key is returned in the result and is not stored. The page in the browser generates keys locally and does not send them.

Render llms.txt and llms-full.txt from a site name, a summary, and a list of pages. It does not crawl. Grouping follows the page URLs.

Render a classic top/bottom-caption meme as a PNG. Give it an image (base64, data URI, or public URL) or pick a gradient style, and it returns captioned meme artwork.

Generate cryptographic passwords or EFF-wordlist passphrases and report the entropy in bits. Randomness comes from the platform CSPRNG.

Build a static QR code for text, a URL, Wi-Fi, or a vCard. Returns the payload, an SVG string, and a PNG as base64.

Build a resume PDF from profile, experience, education, and skills. A name plus at least one experience, education, or skills entry is required. Choose the clean, modern, or compact template. Returns the A4 PDF as base64.

Compute RFC 4226/6238 one-time passcodes from a base32 secret. Supports 6/8 digits, SHA1/SHA256/SHA512, and custom periods.

Generate UUID version 4 or version 7 from cryptographic randomness, up to 10,000 at once, or inspect the version, variant, and v7 timestamp.

Compute MD5, SHA-1, SHA-256, and SHA-512 for UTF-8 text or base64 bytes. Pass hmacKey for HMAC and expected to see which digest matches.

Hash a password with bcrypt or argon2id, or verify a hash. Returns an htpasswd line when a username is set. The password is not stored or logged. The page in the browser never sends the password; this call only hashes the arguments you send.

Turn images, sent as base64 or public URLs in order, into one PDF. JPEG and PNG are embedded directly. Other formats are converted to PNG first. Page size is A4, Letter, or fit. Private addresses are refused. Returns the PDF as base64.

Fetch one public HTML page and report title, description, canonical, Open Graph, Twitter, and JSON-LD. Use this to see what a live URL advertises.

List Open Graph card templates with ids, names, categories, defaults, color presets, and field schemas.

Query A, AAAA, MX, TXT, CNAME, and CAA for a public hostname over DNS-over-HTTPS, and parse SPF and DMARC. Private names are refused. The resolver is Cloudflare or Google.

Arrange up to 9 photos into a collage layout (duo, trio, focus, quad, six, nine) with a gap and background color, and get back a square PNG.

Combine PDF files. Each file is base64 or a public URL, and can keep a page range such as 1-3,5. Private addresses are refused. Returns one PDF as base64.

Minify source code with Terser (JS), csso (CSS), or a structural HTML pass and report before/after byte counts.

Minify an SVG with SVGO. Send markup or a file as base64 or a public URL. Private addresses are refused and the file is capped at 10 MB. The viewBox is kept unless removeViewBox is true. Returns the optimized markup and the byte counts.

Reorder, rotate, or drop PDF pages. Each entry names a 1-based source page and a rotation of 0, 90, 180, or 270. The same page may be listed twice. Send base64 or a public URL. Private addresses are refused.

Protect a PDF with AES-256, or unlock one when the password is known. action is protect or unlock. password is the user password. ownerPassword is optional. permissions cover printing, copying, modifying, annotating, filling forms, accessibility, and assembly. Send base64 or a public URL. Private addresses are refused.

Evaluate a JSONPath Plus query against a JSON document and return the matches with their paths. A number that does not fit in a JavaScript number is returned as its original digits, with a precision warning.

Read QR codes and barcodes from an image. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns each code's text and format. An image with no code returns an empty list.

Read EXIF tags, including GPS, or strip them. action is read or strip. scope is all or gps. gps-only removal keeps the other JPEG tags. Other formats are re-encoded, which drops every tag. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB.

Extract text from an image with Tesseract. language defaults to eng. Other codes in the list are fetched when first used. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the text and a confidence from 0 to 100. An image with no text returns an empty string.

Remove a solid or near-solid background by flood-filling from the border. color is an optional #rrggbb. The portrait model runs in the browser, not in this handler: MODNet is Apache-2.0, RMBG-1.4 is non-commercial, and the ONNX runtime is too large for the serverless function. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns a PNG as base64.

Render PDF pages to PNG or JPEG. DPI is 72 to 216. A page range such as 1-3,5 is optional. At most 24 pages and 25 MB of images. Send base64 or a public URL. Private addresses are refused. Returns image base64 and a ZIP when there is more than one page.

Resize an image by pixels or percent. Fit is contain, cover, or stretch. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the image as base64.

Crop and resize an image to an exact social media preset: instagram-post (1080x1080), instagram-portrait (1080x1350), instagram-story (1080x1920), youtube-thumbnail (1280x720), x-post (1200x675), x-header (1500x500), linkedin-post (1200x627), or facebook-post (1200x630). The cover crop keeps the center subject. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the image as base64 PNG.

Fetch a public page plus its robots.txt, sitemap, and llms.txt, then score how ready it is for AI search crawlers. Use this when you have a live URL.

Stamp a PNG signature image onto one or more PDF pages at given positions (fractions of the page, x and y measured from the top-left, width as a fraction of page width). The signature keeps its aspect ratio. Returns the signed PDF as base64.

Extract a page range into one PDF, or split into single pages or chunks of N. Send base64 or a public URL. Private addresses are refused. Returns PDF base64 and a ZIP when there are several files.

Run a JavaScript regular expression against a sample and return every match, capture group, a short explanation, and an optional replacement.

Trim a WAV audio file to a time range with optional fade in and out, returning a 16-bit PCM WAV as base64. Only WAV is accepted; the web UI handles MP3/OGG/M4A.

Percent-encode or decode text, or parse a URL into its host, path, hash, and query parameters.

Infer a JSON Schema from a sample, or validate JSON against a schema. Returns error paths plus TypeScript and Zod generated from the sample.

Validate sitemap XML or a public sitemap URL, including a sitemap index and a sample of HTTP statuses. Or generate a urlset from a list of URLs. Private addresses are refused and responses are size-capped.

Validate and parse a ws:// or wss:// URL into its components, and optionally decode a WebSocket close code.

Create a ZIP archive from files or list and extract the contents of a ZIP archive. Everything is handled in memory; no files are stored.