Social media image size converter

Graph API Page photos: files cannot exceed 10 MB; for PNG, staying under 1 MB is recommended to avoid pixelation. Facebook resizes images; no organic pixel dimensions or multi-photo count is documented.

Meta Ads Guide, Facebook Feed image: minimum 600 px wide and 750 px tall at 4:5.

Sharing docs: use at least 1200 x 630 px for high resolution devices; at least 600 x 315 px for the larger link preview; minimum allowed 200 x 200 px; keep close to 1.91:1 to avoid cropping. File types not specified.

Meta Business Help (via search extract): videos must be less than 240 minutes; resolution 1080p or under; MP4 recommended. The en-gb version of the page reportedly states files up to 10 GB, the US version gives no size, so maxFileSizeMB is left null. The 16:9 to 9:16 range and 240-minute Feed figure also appear on Meta's video requirements chart, which is ads oriented. Facebook Help lists about 30 accepted containers (MP4 and MOV recommended). Read from a search extract of the official page, which did not load directly.

Page Stories API: files cannot exceed 10 MB (PNG under 1 MB recommended). A Meta-hosted copy of the page reportedly lists 4 MB, so treat the cap as unstable. No resolution given for photos.

Page Stories API: 1080 x 1920 recommended, minimum 540 x 960, 24 to 60 FPS, 3 to 90 seconds per the spec table, but a reel published as a Page story cannot exceed 60 seconds. File size not specified.

Meta Ads Guide safe zone: leave roughly 14% of the top, 35% of the bottom and 6% of each side free of text.

Reels Publishing API: 1080 x 1920 recommended, minimum 540 x 960; error table says ratios between 16:9 and 9:16 are accepted; 24 to 60 FPS fixed, progressive; H.264 or H.265 (VP9, AV1 also supported); closed GOP 2 to 5 s; AAC LC 48 kHz stereo; 3 to 90 seconds. File size not specified. API publishing is limited to 30 posts per Page per 24 hours.

Facebook Help: must be at least 400 x 150 px; loads fastest as an sRGB JPG 851 x 315 px under 100 KB (maxFileSizeMB 0.1 reflects that guidance, not a hard limit). Left aligned full bleed; the profile picture overlaps the cover by about 40 px on mobile and the photo may be cropped per screen.

Help Center: photos are shared at up to 1080 px wide; widths 320 to 1080 px keep their resolution when the ratio is between 1.91:1 and 4:5, smaller images are enlarged to 320 px, larger ones scaled to 1080 px. 1080 x 1080 is that 1080 px width at 1:1, not a separately documented figure. Publishing API: JPEG only, 8 MB max, width 320 to 1440 px, sRGB. Read from a search extract of the official page, which did not load directly.

Help Center gives 1350 px as the tallest height at 1080 px wide (4:5 is the tallest ratio kept uncropped). Publishing API accepts 4:5 to 1.91:1, width 320 to 1440 px, JPEG only, 8 MB max. Read from a search extract of the official page, which did not load directly.

Help Center gives 566 px as the shortest height at 1080 px wide (1.91:1 is the widest ratio kept uncropped). Unsupported ratios are cropped. Read from a search extract of the official page, which did not load directly.

Publishing API: up to 20 images, videos or a mix. Each item is its own image or video container with the image/video limits of those formats; reels are not supported as carousel items. The Help Center page found by search still said 10 items, which looks out of date against the API docs.

Publishing API: HEVC or H.264, progressive, closed GOP, 4:2:0; AAC audio up to 48 kHz; 23 to 60 FPS; max width 1920 px; VBR up to 25 Mbps; 3 s minimum, 15 min maximum; 300 MB max. Cover image: JPEG, 8 MB max, 9:16 recommended; non 9:16 covers are cropped to the middle 9:16 area, and the feed grid uses the middle 1:1 square. In-app recording/upload length limits were not found on an official page (third-party guides cite up to 20 minutes).

Publishing API: JPEG, 8 MB max, sRGB, 9:16 recommended, no hard ratio limits stated. Stories last 24 hours.

Publishing API: same codecs as reels, max width 1920 px, 3 s to 60 s, 100 MB max. Instagram's own Stories guide says a single story clip can be up to 60 seconds and longer videos are split into back-to-back clips in the app.

Meta Ads Guide safe zone: keep roughly 14% of the top, 35% of the bottom and 6% of each side free of text, logos and key elements. Ads spec, not organic, but the only official safe-zone guidance found for Stories.

X API: images up to 5 MB; up to 4 photos, or 1 animated GIF, or 1 video per post. No dimensions or aspect ratio documented. Help Center (German page, via search extract) also gives 5 MB for photos and lists GIF, JPEG, PNG.

X API: up to 15 MB, max 1280 x 1080, max 350 frames, max 300 million total pixels (width x height x frames). Help Center (via search extract): 5 MB on mobile web, 15 MB on web.

X API: 0.5 s minimum; 20 minutes and 8 GB by default, 125 minutes and 16 GB for Premium/verified posters. Dimensions 32x32 to 1280x1024 (1080p for subscribed users); recommended 1280x720, 720x1280 or 720x720; up to 60 FPS (30 or 60 recommended); H.264 High Profile, AAC LC, YUV 4:2:0, progressive, no open GOP. Container/file type is not named on the page, so fileTypes is empty. Help Center video page returned 403 and could not be read.

LinkedIn Help: up to 20 images per upload, 5 MB upload limit, at least 552 x 276 px, recommended width 1080 px, ratio between 3:1 and 4:5 (outside that is cropped). Images API: under 36,152,320 pixels, JPG, GIF (up to 250 frames) and PNG.

MultiImage API: minimum 2, maximum 20 images, each under 36,152,320 pixels. Help page gives the same 20-image cap.

LinkedIn Help and Documents API: max 100 MB and 300 pages; one document per post; PDFs with mixed page sizes must be fit to one size; multi-layer PDFs must be flattened; animations show as static images. maxItems is the page cap. No page pixel size is documented.

LinkedIn Help: 75 KB to 5 GB; 3 s (desktop) or 2 s (mobile app) to 15 minutes; resolution 256x144 to 4096x2304; 10 to 60 FPS; 192 Kbps to 30 Mbps. File format not stated on the Help page. Videos API page states 3 s to 30 min, 75 KB to 500 MB, MP4 for non-CTV video (linked to the video ads spec) while its upload field allows up to 5 GB, so the API page mixes ad and feed limits.

LinkedIn Help: optimal 1920 x 1080 px, covers are cropped to 16:9, GIFs no longer allowed. No file size limit stated.

LinkedIn Help (Pages image specs): use 1.91:1 (1200 x 627 px), image must be more than 200 px wide. The 3 MB PNG/JPEG rule on that page is stated for all Page images.

LinkedIn Help: minimum and recommended 1512 x 256 px; logo 268 x 268 min, 400 x 400 recommended; all Page images PNG or JPEG, max 3 MB.

TikTok Support (via search extract): videos recorded in TikTok up to 10 minutes, videos uploaded up to 60 minutes; if a sound is chosen first, length follows the sound. The page itself could not be rendered. No organic aspect ratio, resolution or safe-zone figures were found on an official organic page. Read from a search extract of the official page, which did not load directly.

API: MP4 recommended; H.264 recommended, also H.265, VP8, VP9; 23 to 60 FPS; 360 to 4096 px on both sides; up to 4 GB; up to 10 minutes via the API, while a given creator may be limited to 3, 5 or 10 minutes (query creator info). No aspect ratio stated.

TikTok Ads: vertical 9:16 at least 540 x 960, horizontal 16:9 at least 960 x 540, square 1:1 at least 640 x 640; up to 500 MB; up to 10 minutes; bitrate at least 516 kbps. Safe zone depends on orientation and caption length; TikTok provides downloadable safe-zone files rather than pixel values.

API: JPEG or WebP, max 1080p, max 20 MB per image; photo_images array holds up to 35 photos, with a required cover index. TikTok Support (via search extract) also says up to 35 photos from device. width 1080 reflects the documented 1080p maximum.

YouTube Help: by default up to 15 minutes; verified accounts can go longer; max 256 GB or 12 hours, whichever is less. Recommended upload: MP4 container, no edit lists; 16:9 is standard on computer, the player adapts to vertical or square; resolutions 360p to 8K; common frame rates 24, 25, 30, 48, 50, 60.

YouTube Help: Shorts are square or vertical videos up to 3 minutes; uploaded at a maximum resolution of 1080p; up to 15 Shorts can be selected per upload batch. Use a wider ratio such as 16:9 to keep a video from becoming a Short. No official organic pixel size or safe zone found.

YouTube Help: recommended 3840 x 2160 for videos (minimum 640 px wide); Shorts thumbnails 2160 x 3840 at 9:16 (minimum 640 px tall). File limit 50 MB on desktop for video, Shorts and podcast thumbnails; video thumbnails capped at 2 MB on mobile. Older guides citing 1280 x 720 and 2 MB are out of date.

YouTube Help: minimum upload 2048 x 1152 px at 16:9; safe area for text and logos 1235 x 338 px at the minimum size; recommended 2560 x 1440 px especially for TV; 6 MB or smaller. Formats not stated for the banner. Profile picture: JPG, GIF, BMP or PNG (no animated GIF), up to 15 MB, renders at 98 x 98 px. Watermark: square, at least 150 x 150 px, under 1 MB.

Threads API: JPEG and PNG, 8 MB max, width 320 to 1440 px (scaled if outside), sRGB, aspect ratio limit 10:1. Carousels take 2 to 20 items (images, videos or a mix).

Threads API: HEVC or H.264, progressive, closed GOP, 4:2:0; AAC up to 48 kHz; 23 to 60 FPS; max width 1920 px; up to 100 Mbps VBR; longer than 0 s and up to 5 minutes; 1 GB max. maxItems refers to carousel size (2 to 20).

Official AT Protocol lexicon app.bsky.embed.images (in Bluesky's @atproto/api 0.29.4): up to 4 images per post, each blob up to 2,000,000 bytes (2 MB, formerly 1 MB), any image MIME type, optional aspectRatio field, alt text required in the schema. No recommended pixel size published. docs.bsky.app now redirects to an empty page, so the lexicon was read from the published npm package.

Lexicon app.bsky.embed.video: MP4 blob up to 300,000,000 bytes (300 MB, formerly 100 MB), up to 20 VTT caption files of 20 KB each. Official @bsky.app post (via search extract) says videos can be up to 10 minutes; earlier limits were 60 s (2024 launch) and 3 min. Launch blog: one video per post, daily cap 25 videos or 10 GB (may change); the app accepted .mp4, .mpeg, .webm and .mov at launch. Read from a search extract of the official page, which did not load directly.

Pinterest Help: 20 MB max on web (the page says 1 GB recommended on Android and iOS); no organic aspect ratio or pixel size stated. Safe zones: keep text within top 270 px, left 65 px, right 195 px and bottom 790 px margins. Title 100 characters, textbox 250, description 800.

Pinterest ad specs: 2:3 or 1000 x 1500 recommended; ratios taller than 2:3 may be cut off in feeds; 20 MB desktop, 32 MB in app.

Pinterest Help: MP4 and M4V on web, plus MOV on Android and iOS; H.264 or H.265; 4 s to 5 minutes; full-screen 9:16 or 1080 x 1920 recommended. Same safe zones as image Pins. No organic file size limit stated (ad spec allows up to 2 GB and up to 15 minutes).

Pinterest ad specs: 2 to 5 images per carousel for non-Sales objectives (2 to 10 images and video for Sales), 20 MB per image. No organic carousel spec found.

Business Profile Help: JPG or PNG, 10 KB to 5 MB, recommended 720 x 720 px, minimum 250 x 250 px. The page covers Business Profile photos in general; no post-specific image size or aspect ratio is published (the posts help page only says posts can include a photo or video).

Business Profile Help: up to 30 seconds, up to 75 MB, 720p or higher. File types not stated.

Mastodon user docs: up to 4 images per post, up to 16 MB each, downscaled to 8.3 megapixels (enough for 3840 x 2160). Animated GIFs up to 16 MB, one per post, converted to soundless MP4. Limits are per server: clients should read configuration.media_attachments (example mastodon.social values: image_size_limit 16777216 bytes, image_matrix_limit 33177600 px, description_limit 1500) and statuses.max_media_attachments (4).

Mastodon user docs: one video per post, up to 99 MB, transcoded to H.264 MP4 at up to 1300 kbps and 120 FPS. No maximum length documented. Example instance config: video_size_limit 103809024 bytes, video_frame_rate_limit 120, video_matrix_limit 8294400 px. Values vary by server.