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Top Free APIs & Datasets 2026

The most popular free public APIs and machine-learning datasets. Datasets are ranked live by Hugging Face downloads — the most reliable adoption signal — while public APIs come from the open public-apis project. The whole board is refreshed continuously by our autonomous agents (last updated 2026-06-15).

Best picks

Most downloaded datasetdocumentation-images logodocumentation-imageshuggingface · ↓ 2.2M/moTop public APIxColors logoxColorsAPI · NoneBest NLP datasetKakologArchives logoKakologArchivesKakologArchives · ↓ 1.8M/moBest vision datasetdocumentation-images logodocumentation-imageshuggingface · ↓ 2.2M/mo

Most-downloaded ML datasets

By real Hugging Face monthly downloads. Longer bar = more usage.

documentation-images
↓ 2.2M
KakologArchives
↓ 1.8M
FineNews
↓ 1.5M
hd_tmp
↓ 1.5M
wikitext
↓ 1.3M
results
↓ 1.3M
banned-historical-archives
↓ 1.3M
osv5m
↓ 1.3M
ubuntu_osworld_file_cache
↓ 1.3M
OpenThoughts-1k-sample
↓ 997K
SWE-bench_Verified
↓ 906K
gsm8k
↓ 901K

Source: Hugging Face Datasets API (downloads), pulled live by our agents.

Datasets ranking

#DatasetCategoryDownloads/moLikesLicense
1documentation-images logodocumentation-imagesImages & Vision2.2M155cc-by-nc-sa-4.0
2KakologArchives logoKakologArchivesText & NLP1.8M55mit
3FineNews logoFineNewsAI & Machine Learning1.5M14—
4hd_tmp logohd_tmpAI & Machine Learning1.5M17—
5wikitext logowikitextText & NLP1.3M712cc-by-sa-3.0
6results logoresultsAI & Machine Learning1.3M3—
7banned-historical-archives logobanned-historical-archivesImages & Vision1.3M46—
8osv5m logoosv5mAI & Machine Learning1.3M53cc-by-sa-4.0
9ubuntu_osworld_file_cache logoubuntu_osworld_file_cacheAI & Machine Learning1.3M30apache-2.0
10OpenThoughts-1k-sample logoOpenThoughts-1k-sampleAI & Machine Learning997K27—
11SWE-bench_Verified logoSWE-bench_VerifiedAI & Machine Learning906K354—
12gsm8k logogsm8kText & NLP901K1.4Kmit
13c4 logoc4Text & NLP827K597odc-by
14ps2_hf2 logops2_hf2AI & Machine Learning761K18—
15bridge_orig_lerobot logobridge_orig_lerobotAI & Machine Learning734K21apache-2.0
16upload2 logoupload2Images & Vision723K23—
17img_upload logoimg_uploadImages & Vision661K19—
18jat-dataset logojat-datasetImages & Vision652K61apache-2.0
19doc-build-dev logodoc-build-devAI & Machine Learning649K36mit
20SWE-bench_Multilingual logoSWE-bench_MultilingualText & NLP620K17mit
21typed_digital_signatures logotyped_digital_signaturesImages & Vision616K6mit
22dclm-baseline-1.0 logodclm-baseline-1.0AI & Machine Learning595K286cc-by-4.0
23pesoz logopesozAI & Machine Learning563K19—
24ps2_hf1 logops2_hf1AI & Machine Learning558K11—
25FineFineWeb logoFineFineWebText & NLP531K149apache-2.0

Top free public APIs

Sourced from the open public-apis project. APIs don't publish download counts, so they're ranked by engagement.

xColors logoxColorsImages & Vision · NoneGenerate and convert colors via simple API calls.Church Calendar logoChurch CalendarDeveloper Tools · NoneAccess Catholic liturgical calendar data via unauthenticated HTTP requests.Metropolitan Museum of Art logoMetropolitan Museum of ArtImages & Vision · NoneAccess Metropolitan Museum of Art collection data and images.Icons8 logoIcons8Images & Vision · NoneSearch and retrieve icons from a large visual collection.PHP-Noise logoPHP-NoiseImages & Vision · NoneGenerates procedural noise background images via PHP.SAWO Labs logoSAWO LabsDeveloper Tools · API KeyIntegrate passwordless authentication to simplify app login.Word Cloud logoWord CloudImages & Vision · API KeyGenerate word clouds from text via API.Micro User Service logoMicro User ServiceDeveloper Tools · API KeyHandles user management and authentication with API key access over HTTPS.Cooper Hewitt logoCooper HewittImages & Vision · API KeyAccess design collection data from the Smithsonian Cooper Hewitt Museum.Colormind logoColormindImages & Vision · NoneGenerates color schemes for visual applications.DummyImage logoDummyImageImages & Vision · NoneGenerate placeholder images with custom size, colors, and text.EmojiHub logoEmojiHubImages & Vision · NoneRetrieve emojis organized by categories and groups.Czech Namedays Calendar logoCzech Namedays CalendarDeveloper Tools · NoneLookup Czech names to retrieve their nameday dates.Europeana logoEuropeanaImages & Vision · API KeyAccess visual content from European museums and galleries.Stytch logoStytchDeveloper Tools · API KeyUser infrastructure for modern applications.ColourLovers logoColourLoversImages & Vision · NoneRetrieve patterns, palettes, and images via a public API.Auth0 logoAuth0Developer Tools · API KeyAuthentication and authorization platform that is easy to implement and adaptable.Pixel Encounter logoPixel EncounterImages & Vision · NoneGenerates SVG icons via a public API.Icon Horse logoIcon HorseImages & Vision · NoneFetch favicons for any website with automatic fallback support.GetOTP logoGetOTPDeveloper Tools · API KeyAPI for quick OTP flow implementation in applications.Lordicon logoLordiconImages & Vision · NoneIcons with pre-done animations for visual interfaces.UpRes logoUpResImages & Vision · API KeyAI image upscaling to 8K using 18 models via API key.Rijksmuseum logoRijksmuseumImages & Vision · API KeyAccess Rijksmuseum collection data through an API key authenticated service.MojoAuth logoMojoAuthDeveloper Tools · API KeySecure passwordless authentication platform with API key access.

Frequently asked questions

documentation-images by huggingface is the most-downloaded dataset we track, with about 2.2M downloads per month on Hugging Face. Images used in Hugging Face library documentation.