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Reference · updated October 4, 2026

File size limits by platform (2026)

31 platforms, one table: the largest file each messaging app, mailbox, social network, work tool and French administration accepts — with the exact rule, the conditions, the source and the day we last checked it.

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The most searched limits

All platforms

Each platform name links to its own row — copy that link to point straight at it. "To verify" marks a figure no official page confirms.

Messaging

WhatsApp

Videos, Images, Audio · Up to 16 MB16,000,000 bytes

PDF, Other files · Up to 2 GB2,000,000,000 bytes

  • Over 16 MB: only as a document (no preview, original quality)
  • Recompressed by the platform (some quality loss)
  • Photos, videos and voice notes: 16 MB as media. Any file up to 2 GB as a document.
Source
Telegram

All files · Up to 2 GB2,000,000,000 bytes

  • Over the free limit: needs a paid Premium plan
  • 2 GB per file; 4 GB with Telegram Premium.
Source
Signalto verify

All files · Up to 100 MB100,000,000 bytes

    		Source
    Messenger

    Videos, Images · Up to 100 MB100,000,000 bytes

    Audio, PDF, Other files · Up to 100 MB100,000,000 bytes

    • Recompressed by the platform (some quality loss)
    • Raised from 25 MB to 100 MB in 2025.
    		Source
    iMessageto verify

    Videos, Images · Up to 100 MB100,000,000 bytes

    Audio, PDF, Other files · Up to 100 MB100,000,000 bytes

    • Recompressed by the platform (some quality loss)
    • Apple publishes no figure; larger files fail or are sent in low quality.
    		Source

    Email

    Gmail

    All files · Up to 25 MB25,000,000 bytes

    • Over 25 MB: sent as a Google Drive link, not as an attachment
    • Receiving: 50 MB. Over 25 MB, Gmail inserts a Google Drive link instead.
    		Source
    Outlook.com

    All files · Up to 20 MB20,000,000 bytes

    • Over 20 MB: sent as a OneDrive link, not as an attachment
    • For all attachments of one message. Larger files: share a OneDrive link.
    		Source
    Yahoo Mail

    All files · Up to 25 MB25,000,000 bytes

    • For all attachments of one message.
    		Source
    Proton Mail

    All files · Up to 25 MB (counted once encoded (+37 %))25,000,000 bytes

    • Outgoing; the encoded size counts (a file grows by about 37 %). Receiving: 50 MB.
    		Source
    Mail Orangeto verify

    All files · Up to 25 MB25,000,000 bytes

    • Message and attachments together; reported by Orange's community, not an official page.
    		Source
    Free (Zimbra)to verify

    All files · Up to 75 MB75,000,000 bytes

    • Figure from 2017 (raised from 10 MB); not confirmed since.
    		Source
    SFR Mailto verify

    All files · Up to 100 MB100,000,000 bytes

    • Figure from third-party guides; SFR's help pages do not state it.
    		Source

    Social networks

    Instagram — postto verify

    Images · Up to 30 MB30,000,000 bytes

    • Larger than 1,080 px: scaled down by the platform
    • Recompressed by the platform (some quality loss)
    		Source
    Instagram — Reel

    Videos · Up to 4 GB · 3 min max4,000,000,000 bytes

    • Longer than 3 min: published, but not pushed as a Reel
    • Recompressed by the platform (some quality loss)
    • 3 minutes for a Reel; videos up to 15 minutes are still posted as Reels.
    		Source
    Instagram — Storyto verify

    Videos · Up to 4 GB · 1 min max4,000,000,000 bytes

    Images · Up to 30 MB30,000,000 bytes

    • Longer than 1 min: cut into several stories
    • Recompressed by the platform (some quality loss)
    		Source
    TikTokto verify

    Videos · 1 h max

    • Recompressed by the platform (some quality loss)
    • Up to 60 min when uploaded, 10 min when recorded in the app. File size: no reliable official figure.
    		Source
    X (Twitter)

    GIF · Up to 15 MB15,000,000 bytes

    Images · Up to 5 MB5,000,000 bytes

    Videos · Up to 512 MB · 2:20 max512,000,000 bytes

    • Recompressed by the platform (some quality loss)
    • Over the free limit: needs a paid Premium plan
    • Free accounts. Premium: longer and larger videos.
    		Source
    Facebook

    Videos · Up to 10 GB · 4 h max10,000,000,000 bytes

    Images · No size limit published

    • Recompressed by the platform (some quality loss)
    • Larger than 2,048 px: scaled down by the platform
    		Source
    LinkedIn

    Videos · Up to 5 GB · 15 min max5,000,000,000 bytes

    PDF · Up to 100 MB · 300 pages max100,000,000 bytes

    • Recompressed by the platform (some quality loss)
    • Video: 15 min from a computer, 10 min from the app. PDF documents: 100 MB, 300 pages.
    		Source
    YouTube

    Videos · Up to 256 GB · 15 min max256,000,000,000 bytes

    • Longer than 15 min: needs a verified account
    • 256 GB or 12 hours, whichever comes first. Over 15 min: verified account.
    		Source
    Pinterestto verify

    Videos · Up to 2 GB · 15 min max2,000,000,000 bytes

    Images · Up to 20 MB20,000,000 bytes

      		Source
      Threadsto verify

      Videos · Up to 1 GB · 5 min max1,000,000,000 bytes

      Images · Up to 8 MB8,000,000 bytes

      • Recompressed by the platform (some quality loss)
      		Source

      Work & file sharing

      Slack

      All files · Up to 1 GB1,000,000,000 bytes

        		Source
        Microsoft Teams

        All files · Up to 250 GB250,000,000,000 bytes

          		Source
          Discord

          All files · Up to 20 MiBbinary: 20,971,520 bytes

          • Over 20 MiB: needs Nitro (Nitro Basic 50 MB, Nitro 500 MB)
          • Free accounts: 20 MB since August 2026 (10 MB before). Nitro Basic: 50 MB, Nitro: 500 MB.
          		Source
          Google Drive — one file

          All files · Up to 15 GB15,000,000,000 bytes

          • Over 15 GB: more than the free storage — needs a paid plan
          • 5 TB per file, but a free account has 15 GB of storage in total.
          		Source
          WeTransfer — free plan

          All files · Up to 3 GB3,000,000,000 bytes

          • Free plan: 3 GB and 10 transfers per 30 days in total
          • Free plan since December 2024: 3 GB and 10 transfers per 30 days.
          		Source

          French administration

          CAF — supporting documents

          Images, PDF · Up to 10 MB10,000,000 bytes

          • Whole document (all pages together); JPEG, PDF, PNG or GIF.
          		Source
          France Travail — mail to your adviser

          Images, PDF, Audio, Other files · Up to 5 MB5,000,000 bytes

          • Attachment of a mail to your adviser; PDF, JPG, PNG, GIF, TXT, ZIP…
          		Source
          impots.gouv.fr — secure messagingto verify

          Images, PDF, Other files · Up to 10 MB10,000,000 bytes

          • Attachment of a secure message in your personal space.
          		Source
          ANTS — vehicle registration documentsto verify

          Images, PDF · Up to 1 MB1,000,000 bytes

          • Per supporting document of a vehicle registration request, as reported by users.
          		Source

          Why limits differ from one platform to another

          Every file a platform accepts is stored, copied to its servers around the world and often re-encoded. Messaging apps keep media small so a chat loads fast on a mobile connection; e-mail is limited by a 40-year-old format that turns every attachment into text; cloud storage sells space, so it lets one file be huge but caps the total.

          That is why one file can go through as a "document" but not as a video, why Gmail turns a big attachment into a Drive link, and why a social network accepts a 4 GB video but recompresses it anyway. Limits also move: Discord lowered its free limit to 10 MB in 2024 and doubled it in 2026 — hence the date next to each figure.

          MB or MiB: why a "25 MB" file can be refused

          A megabyte (MB) is 1,000,000 bytes; a mebibyte (MiB) is 1,048,576. Windows shows sizes in binary units but writes "MB", and e-mail adds about 37 % of encoding on top. Each limit in the table says which unit the platform uses; when it does not say, we use the stricter decimal reading, so "accepted" really means accepted.

          How we check

          Each figure comes from the platform's help pages when they state it, and is re-checked regularly; the date is the last check. A figure only found in community answers or third-party guides is marked "to verify". Spotted a change? Tell us through the contact page.

          Frequently asked questions

          Cite this page

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          Text
          "File size limits by platform (2026)", AwesomeToolkit, last verified October 4, 2026. https://awesometoolkit.com/en/file-size-limits
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          <a href="https://awesometoolkit.com/en/file-size-limits">File size limits by platform (2026) — AwesomeToolkit</a>

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          Platforms · 6 platforms

          Messaging

          Email

          Social networks

          Work & file sharing

          French administration

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          <iframe src="https://awesometoolkit.com/embed/file-limits?lang=en&amp;theme=light&amp;platforms=whatsapp,gmail,outlook,discord,instagram-reel,google-drive" title="File size limits checker" width="100%" height="600" style="border:0;max-width:100%" loading="lazy"></iframe>
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