A file conversion API that just works.
Convert PDFs, images, fonts, archives, and structured data with a single HTTPS call. 183 tools, one consistent contract — send bytes, get bytes back. Sign in with GitHub, GitLab, or Bitbucket to start using any tool below — free while you're under the monthly quota.
- Sub-second responses, served from the closest region to your caller
- Repeat conversions return instantly — outputs are deduplicated by request fingerprint
- No SDK, no servers — works from any language with an HTTP client
- Generous free tier; usage-based pricing kicks in only at scale
183 tools
POST to /api/<tool-id>
Data · 19
Convert and transform structured data — JSON, CSV, YAML, TOML, XML, and Excel — plus jq/yq filters and validators.
- Data conversion · 11Convert between JSON, CSV, Excel (XLSX), YAML, TOML, and XML — every common pairing covered.
- Data query & filter · 3Run jq, yq, or JSONPath expressions to select and reshape values inside JSON / YAML documents.
- Data transformation & validation · 5Format, patch, diff, and validate JSON / CSV documents; generate schemas from sample data.
Text · 17
HTML/Markdown conversion, regex, slugify, lorem ipsum, diff, and URL encoding.
- HTML & Markdown · 6Convert, sanitize, and escape HTML; turn HTML into clean Markdown or plain text; generate a Markdown table of contents.
- Code minification · 2Minify JavaScript and CSS — production builds without bundling a minifier into your client.
- Regular expressions · 2Test patterns against text, list every match, and run RE2-safe regex replace.
- Text transformation · 5Slugify, change case, generate lorem ipsum, and URL-encode / decode.
- Inspect & compare · 2Compute word / line / character counts and produce unified diffs between two text inputs.
Images · 103
Format conversion, resize, crop, rotate, EXIF, QR codes, and SVG optimization.
- Image conversion · 39Convert between JPEG, PNG, WebP, and HEIC — every common pairing covered with a single HTTPS call.
- Image resize · 4Resize JPEG, PNG, and WebP images while preserving aspect ratio. Pick a width, a height, or both.
- Image effects · 13Visual filters and tonal adjustments — grayscale, threshold (black & white), blur, sharpen, charcoal, modulate.
- Image manipulation · 22Geometric and metadata operations — flip, rotate, crop, perspective, trim, strip EXIF.
- Image inspection & extraction · 25Read structured data from images — dimensions, format, EXIF metadata, embedded QR codes — and generate QR codes too.
PDFs · 9
Inspect, split, merge, and extract text or images from PDF documents.
Crypto · 14
Hashes, base64, JWT decode, and UUID generation.
- Hash · 4Compute SHA-1, SHA-256, SHA-384, or SHA-512 digests of text or file bytes.
- Encode & decode · 4Round-trip strings or binary blobs through base64 (standard or URL-safe) and hex.
- JWT · 3Sign, verify, and decode JSON Web Tokens (HS256 / HS384 / HS512).
- Generate · 3Cryptographically random UUIDs, opaque tokens, and human-friendly passwords.
Archives · 6
Zip, gzip, and zstd compress / extract.
Fonts · 3
Inspect and subset OpenType, TrueType, and WOFF fonts.
Documents · 3
Document format conversions.
Audio · 1
Audio format conversion and inspection.
OCR · 5
Recognise printed and handwritten text in document photos and scans. Tesseract LSTM (eng) plus document-cleanup pipelines tuned for receipts, whiteboards, and ID cards.
Other · 3
Utilities that don't fit a single category.