io.github.fabwaseem/benchline

Tools

• aes_crypt

  AES-256-GCM encryption with PBKDF2-SHA256 key derivation. Encrypt returns a base64 bundle (salt, IV, ciphertext); decrypt reverses it.

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• analyze_har

  Parse a HAR (HTTP Archive) capture and summarize it: request counts, status distribution, slowest and largest requests, top hosts, and per-request timings.

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• base64_codec

  Encode UTF-8 text as Base64, or decode Base64 and data URIs. URL-safe output uses - and _ and omits padding. Decode reports the sniffed media type and whether the bytes are UTF-8 text.

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• build_csp

  Build a Content-Security-Policy from directives, or lint an existing policy. Returns the header line, a Next.js headers() snippet, and warnings for unsafe sources.

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• build_json_ld

  Build schema.org JSON-LD for one type, plus a script tag and a list of missing fields. Use this when you already know the fields. It does not fetch a page.

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• build_nextjs_dockerfile

  Generate a production Dockerfile, dockerignore, compose file, and next.config snippet for a Next.js app. Defaults match a pnpm standalone image.

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• build_open_graph

  Render one of the Open Graph templates as a PNG and a Next.js opengraph-image.tsx file. Pass a template id from list_og_templates, the fields that template uses, colors, a size, and optional base64 images.

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• calculate_cidr

  Return the network, broadcast, host range, and host count for an IPv4 or IPv6 CIDR. Optionally test whether an address is inside it, split it, or merge it with other CIDRs.

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• calculate_emi

  Calculate a reducing-balance loan installment and its amortization schedule. Money is rounded half up to cents. An optional extra monthly payment reduces principal.

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• calculate_percentage

  Calculate percent of a value, what percent one number is of another, percent change, the reverse, an increase or decrease, and margin versus markup.

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• calculate_programmer

  Evaluate integer expressions with C-like precedence (hex/octal/binary literals, bitwise ops, shifts) and report base conversions plus signed/unsigned interpretations.

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• check_http_headers

  Fetch a public URL, follow redirects, and grade HSTS, Content-Security-Policy, framing, nosniff, and Referrer-Policy. Private addresses are refused. The body is not stored.

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• check_robots_txt

  Fetch a public robots.txt and report whether the wildcard group blocks the site and whether Sitemap lines are absolute. Use this when you have a URL, not a pasted file.

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• check_ssl

  Connect to a public host on port 443 and report certificate expiry, subject alternative names, protocol, and chain. Private addresses are refused. The handshake times out after 8 seconds.

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• compress_image

  Re-encode an image at a quality from 1 to 100, optionally capping the longest edge. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the image as base64.

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• compress_pdf

  Recompress embedded images in a PDF. Presets are light, medium, and strong. Send base64 or a public URL. Private addresses are refused. An optional target size tries harder. Returns the PDF and the sizes before and after.

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• convert_case

  Convert text to camelCase, snake_case, kebab-case, CONSTANT_CASE, and AP or Chicago title case. Returns every style unless one is requested.

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• convert_color

  Convert HEX, RGB, HSL, OKLCH, or CMYK into every format, name the nearest Tailwind token, and report the WCAG 2 contrast ratio against a background.

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• convert_csv_json

  Convert CSV to JSON or JSON to CSV. Supports comma, tab, semicolon, and pipe delimiters, an optional header, type inference, and dotted flattening. Inferred numbers that do not fit in a JavaScript number keep their digits.

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• convert_curl

  Parse a curl command and generate equivalent JavaScript fetch, Python requests, Go, PHP, or Rust code.

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• convert_currency

  Convert money between ISO 4217 currencies using live exchange rates from the Frankfurter API, fetched through the SSRF-safe outbound guard. Supports historical dates.

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• convert_data_format

  Convert between JSON, YAML, TOML, and XML. Auto-detects the source. Numbers that do not fit in a JavaScript number keep their digits. Errors include a line and column. TOML refuses null and a non-table root.

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• convert_image

  Convert an image to JPEG, PNG, WebP, or AVIF. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the image as base64. HEIC is not decoded here.

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• convert_json_to_types

  Infer types from a JSON document and generate TypeScript interfaces, Zod schemas, Python Pydantic models or dataclasses, and Go structs.

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• convert_markdown_html

  Convert GitHub-flavored Markdown to HTML, or HTML to Markdown. to is html or markdown. sanitize strips scripts from the text output. The conversion does not fetch a URL.

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• convert_units

  Convert length, mass, volume, temperature, area, speed, time, and data size. Decimal bytes (kB, MB) and binary bytes (KiB, MiB) are separate categories.

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• convert_unix_timestamp

  Convert epoch seconds, milliseconds, microseconds, or nanoseconds to ISO-8601 and RFC 2822 in an IANA time zone, or convert a calendar time back to epoch.

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• count_text

  Count words, code points, graphemes, sentences, and paragraphs, and compare the length with SEO and social limits.

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• count_tokens

  Count tokens with the o200k or cl100k encoder and price the count against the published model table. Claude and Gemini rows are estimates, not those vendors' tokenizers.

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• crop_image

  Crop an image to a pixel box or a 0 to 1 ratio box. circle cuts a round mask. format is png, jpeg, or webp. Send base64 or a public URL. Private addresses are refused and the decoded file is capped at 10 MB. Returns the image as base64.

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• date_difference

  Count calendar days, elapsed time, and business days between two dates. Business days skip weekends and any YYYY-MM-DD holidays you list.

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• decode_jwt

  Decode a signed JSON Web Token into its header, payload, and registered claims. Dates are absolute ISO timestamps. The signature is not checked.

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• diff_text

  Compare two texts by line, word, or character, or compare JSON so object key order does not matter. Returns an inline diff, side-by-side rows for line and JSON modes, and a unified patch.

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• execute_graphql

  Send a GraphQL query with optional variables and headers to a public http or https endpoint on port 80 or 443 and return the response data or errors. Local, private, and internal addresses are refused.

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• explain_chmod

  Convert an octal or symbolic file mode into octal, symbolic notation, and a chmod command, including setuid, setgid, and the sticky bit.

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• explain_cron

  Turn a cron expression into English, the next UTC run times, and snippets for crontab, GitHub Actions, Vercel, Kubernetes, and node-cron.

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• extract_pdf_text

  Read the selectable text layer of a PDF. Returns per-page text, markdown-style headings, and an o200k token count. Does not OCR scans. Send base64 or a public URL. Private addresses are refused.

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• fetch_page_markdown

  Fetch a public HTML page and return the article as Markdown, plus a title, excerpt, and o200k token count. Private and local addresses are refused. The response is capped at 800 KB.

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• fill_pdf_form

  Fill an interactive PDF form's text fields, checkboxes, dropdowns, and radios by field name, with an option to flatten the result. Pass inspectOnly to list the fields first.

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• format_json

  Pretty-print or minify JSON. A number that does not fit in a JavaScript number keeps the digits you sent. Returns the formatted text when it is valid, or the line and column of each syntax error.

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• format_sql

  Format SQL for PostgreSQL, MySQL, BigQuery, Snowflake, and other dialects. Choose keyword case and an indent of 2 or 4 spaces.

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• generate_fake_data

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

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• generate_favicon

  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.

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• generate_invoice

  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.

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• generate_keypair

  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.

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• generate_llms_txt

  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.

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• generate_meme

  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.

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• generate_password

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

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• generate_qr_code

  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.

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• generate_resume

  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.

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• generate_totp

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

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• generate_uuid

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

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• hash_data

  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.

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• hash_password

  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.

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• images_to_pdf

  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.

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• inspect_meta_tags

  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.

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• list_og_templates

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

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• lookup_dns

  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.

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• make_collage

  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.

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• merge_pdf

  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.

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• minify_code

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

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• optimize_svg

  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.

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• organize_pdf

  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.

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• protect_pdf

  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.

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• query_jsonpath

  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.

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• read_barcode

  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.

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• read_exif

  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.

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• read_image_text

  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.

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• remove_background

  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.

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• render_pdf_pages

  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.

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• resize_image

  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.

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• resize_social_image

  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.

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• score_ai_seo

  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.

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• sign_pdf

  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.

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• split_pdf

  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.

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• test_regex

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

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• trim_audio

  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.

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• url_codec

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

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• validate_json_schema

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

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• validate_sitemap

  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.

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• validate_websocket_url

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

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• zip_files

  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.

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Embed this server’s score

Tool count and median score across every tool in this server’s corpus — honest in a way a single cherry-picked tool’s badge wouldn’t be.

[![Vouch score](https://vouch.tools/api/servers/58bd2baa-bfb5-4db5-9d2f-70980fa3ff38/badge.svg)](https://vouch.tools/servers/58bd2baa-bfb5-4db5-9d2f-70980fa3ff38)